ift6266: transformations/local_elastic

annotate transformations/local_elastic_distortions.py @ 39:17caecc92544

affine transformation using PIL

author	Razvan Pascanu <r.pascanu@gmail.com>
date	Tue, 02 Feb 2010 21:17:11 -0500
parents	a8ac3402eb45
children	c89defea1e65

rev	line source
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	1 #!/usr/bin/python
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	2 # coding: utf-8
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	3
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	4 '''
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	5 Implementation of elastic distortions as described in
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	6 Simard, Steinkraus, Platt, "Best Practices for Convolutional
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	7 Neural Networks Applied to Visual Document Analysis", 2003
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	8
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	9 Author: François Savard
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	10 Date: Fall 2009, revised Winter 2010
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	11
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	12 Usage: create the Distorter with proper alpha, sigma etc.
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	13 Then each time you want to change the distortion field applied,
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	14 call regenerate_field().
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	15
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	16 (The point behind this is that regeneration takes some time,
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	17 so we better reuse the fields a few times)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	18 '''
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	19
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	20 import sys
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	21 import math
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	22 import numpy
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	23 import numpy.random
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	24 import scipy.signal # convolve2d
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	25
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	26 _TEST_DIR = "/home/francois/Desktop/dist_tests/"
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	27
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	28 def _raw_zeros(size):
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	29 return [[0 for i in range(size[1])] for j in range(size[0])]
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	30
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	31 class ElasticDistortionParams():
30 a8ac3402eb45 Correction aux distortions élastiques (retourne float32) suite à tests avec testmod.py fsavard <francois.savard@polymtl.ca> parents: 29 diff changeset	32 def __init__(self, image_size=(32,32), alpha=0.0, sigma=0.0):
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	33 self.image_size = image_size
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	34 self.alpha = alpha
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	35 self.sigma = sigma
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	36
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	37 h,w = self.image_size
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	38
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	39 self.matrix_tl_corners_rows = _raw_zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	40 self.matrix_tl_corners_cols = _raw_zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	41
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	42 self.matrix_tr_corners_rows = _raw_zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	43 self.matrix_tr_corners_cols = _raw_zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	44
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	45 self.matrix_bl_corners_rows = _raw_zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	46 self.matrix_bl_corners_cols = _raw_zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	47
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	48 self.matrix_br_corners_rows = _raw_zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	49 self.matrix_br_corners_cols = _raw_zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	50
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	51 # those will hold the precomputed ratios for
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	52 # bilinear interpolation
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	53 self.matrix_tl_multiply = numpy.zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	54 self.matrix_tr_multiply = numpy.zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	55 self.matrix_bl_multiply = numpy.zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	56 self.matrix_br_multiply = numpy.zeros((h,w))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	57
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	58 def alpha_sigma(self):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	59 return [self.alpha, self.sigma]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	60
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	61 class LocalElasticDistorter():
30 a8ac3402eb45 Correction aux distortions élastiques (retourne float32) suite à tests avec testmod.py fsavard <francois.savard@polymtl.ca> parents: 29 diff changeset	62 def __init__(self, image_size=(32,32)):
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	63 self.image_size = image_size
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	64
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	65 self.current_complexity = 0.0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	66
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	67 # number of precomputed fields
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	68 # (principle: as complexity doesn't change often, we can
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	69 # precompute a certain number of fields for a given complexity,
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	70 # each with its own parameters. That way, we have good
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	71 # randomization, but we're much faster).
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	72 self.to_precompute = 50
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	73
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	74 # Both use ElasticDistortionParams
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	75 self.current_params = None
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	76 self.precomputed_params = []
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	77
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	78 #
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	79 self.kernel_size = None
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	80 self.kernel = None
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	81
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	82 # set some defaults
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	83 self.regenerate_parameters(0.0)
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	84
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	85 def get_settings_names(self):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	86 return ['alpha', 'sigma']
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	87
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	88 def regenerate_parameters(self, complexity):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	89 if abs(complexity - self.current_complexity) > 1e-4:
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	90 self.current_complexity = complexity
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	91
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	92 # complexity changed, fields must be regenerated
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	93 self.precomputed_params = []
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	94
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	95 if len(self.precomputed_params) <= self.to_precompute:
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	96 # not yet enough params generated, produce one more
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	97 # and append to list
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	98 new_params = self._initialize_new_params()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	99 new_params = self._generate_fields(new_params)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	100 self.current_params = new_params
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	101 self.precomputed_params.append(new_params)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	102 else:
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	103 # if we have enough precomputed fields, just select one
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	104 # at random and set parameters to match what they were
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	105 # when the field was generated
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	106 idx = numpy.random.randint(0, len(self.precomputed_params))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	107 self.current_params = self.precomputed_params[idx]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	108
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	109 # don't return anything, to avoid storing deterministic parameters
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	110 return [] # self.current_params.alpha_sigma()
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	111
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	112 def get_parameters_determined_by_complexity(self, complexity):
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	113 tmp_params = self._initialize_new_params(complexity)
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	114 return tmp_params.alpha_sigma()
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	115
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	116 # adapted from http://blenderartists.org/forum/showthread.php?t=163361
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	117 def _gen_gaussian_kernel(self, sigma):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	118 # the kernel size can change DRAMATICALLY the time
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	119 # for the blur operation... so even though results are better
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	120 # with a bigger kernel, we need to compromise here
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	121 # 1s is very different from 2s, but there's not much difference
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	122 # between 2s and 4s
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	123 ks = self.kernel_size
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	124 s = sigma
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	125 target_ks = (1.5s, 1.5s)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	126 if not ks is None and ks[0] == target_ks[0] and ks[1] == target_ks[1]:
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	127 # kernel size is good, ok, no need to regenerate
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	128 return
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	129 self.kernel_size = target_ks
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	130 h,w = self.kernel_size
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	131 a,b = h/2.0, w/2.0
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	132 y,x = numpy.ogrid[0:w, 0:h]
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	133 gauss = numpy.exp(-numpy.square((x-a)/s))*numpy.exp(-numpy.square((y-b)/s))
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	134 # Normalize so we don't reduce image intensity
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	135 self.kernel = gauss/gauss.sum()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	136
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	137 def _gen_distortion_field(self, params):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	138 self._gen_gaussian_kernel(params.sigma)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	139
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	140 # we add kernel_size on all four sides so blurring
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	141 # with the kernel produces a smoother result on borders
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	142 ks0 = self.kernel_size[0]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	143 ks1 = self.kernel_size[1]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	144 sz0 = self.image_size[1] + ks0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	145 sz1 = self.image_size[0] + ks1
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	146 field = numpy.random.uniform(-1.0, 1.0, (sz0, sz1))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	147 field = scipy.signal.convolve2d(field, self.kernel, mode='same')
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	148
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	149 # crop only image_size in the middle
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	150 field = field[ks0:ks0+self.image_size[0], ks1:ks1+self.image_size[1]]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	151
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	152 return params.alpha * field
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	153
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	154
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	155 def _initialize_new_params(self, complexity=None):
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	156 if not complexity:
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	157 complexity = self.current_complexity
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	158
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	159 params = ElasticDistortionParams(self.image_size)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	160
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	161 # pour faire progresser la complexité un peu plus vite
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	162 # tout en gardant les extrêmes de 0.0 et 1.0
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	163 complexity = complexity ** (1./3.)
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	164
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	165 # the smaller the alpha, the closest the pixels are fetched
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	166 # a max of 10 is reasonable
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	167 params.alpha = complexity * 10.0
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	168
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	169 # the bigger the sigma, the smoother is the distortion
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	170 # max of 1 is "reasonable", but produces VERY noisy results
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	171 # And the bigger the sigma, the bigger the blur kernel, and the
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	172 # slower the field generation, btw.
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	173 params.sigma = 10.0 - (7.0 * complexity)
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	174
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	175 return params
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	176
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	177 def _generate_fields(self, params):
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	178 '''
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	179 Here's how the code works:
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	180 - We first generate "distortion fields" for x and y with these steps:
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	181 - Uniform noise over [-1, 1] in a matrix of size (h,w)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	182 - Blur with a Gaussian kernel of spread sigma
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	183 - Multiply by alpha
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	184 - Then (conceptually) to compose the distorted image, we loop over each pixel
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	185 of the new image and use the corresponding x and y distortions
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	186 (from the matrices generated above) to identify pixels
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	187 of the old image from which we fetch color data. As the
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	188 coordinates are not integer, we interpolate between the
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	189 4 nearby pixels (top left, top right etc.).
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	190 - That's just conceptually. Here I'm using matrix operations
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	191 to speed up the computation. I first identify the 4 nearby
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	192 pixels in the old image for each pixel in the distorted image.
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	193 I can then use them as "fancy indices" to extract the proper
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	194 pixels for each new pixel.
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	195 - Then I multiply those extracted nearby points by precomputed
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	196 ratios for the bilinear interpolation.
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	197 '''
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	198
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	199 p = params
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	200
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	201 dist_fields = [None, None]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	202 dist_fields[0] = self._gen_distortion_field(params)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	203 dist_fields[1] = self._gen_distortion_field(params)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	204
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	205 #pylab.imshow(dist_fields[0])
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	206 #pylab.show()
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	207
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	208 # regenerate distortion index matrices
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	209 # "_rows" are row indices
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	210 # "_cols" are column indices
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	211 # (separated due to the way fancy indexing works in numpy)
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	212 h,w = p.image_size
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	213
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	214 for y in range(h):
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	215 for x in range(w):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	216 distort_x = dist_fields[0][y,x]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	217 distort_y = dist_fields[1][y,x]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	218
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	219 # the "target" is the coordinate we fetch color data from
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	220 # (in the original image)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	221 # target_left and _top are the rounded coordinate on the
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	222 # left/top of this target (float) coordinate
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	223 target_pixel = (y+distort_y, x+distort_x)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	224
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	225 target_left = int(math.floor(x + distort_x))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	226 target_top = int(math.floor(y + distort_y))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	227
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	228 index_tl = [target_top, target_left]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	229 index_tr = [target_top, target_left+1]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	230 index_bl = [target_top+1, target_left]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	231 index_br = [target_top+1, target_left+1]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	232
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	233 # x_ratio is the ratio of importance of left pixels
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	234 # y_ratio is the """" of top pixels
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	235 # (in bilinear combination)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	236 y_ratio = 1.0 - (target_pixel[0] - target_top)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	237 x_ratio = 1.0 - (target_pixel[1] - target_left)
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	238
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	239 # We use a default background color of 0 for displacements
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	240 # outside of boundaries of the image.
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	241
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	242 # if top left outside bounds
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	243 if index_tl[0] < 0 or index_tl[0] >= h or index_tl[1] < 0 or index_tl[1] >= w:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	244 p.matrix_tl_corners_rows[y][x] = 0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	245 p.matrix_tl_corners_cols[y][x] = 0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	246 p.matrix_tl_multiply[y,x] = 0
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	247 else:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	248 p.matrix_tl_corners_rows[y][x] = index_tl[0]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	249 p.matrix_tl_corners_cols[y][x] = index_tl[1]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	250 p.matrix_tl_multiply[y,x] = x_ratio*y_ratio
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	251
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	252 # if top right outside bounds
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	253 if index_tr[0] < 0 or index_tr[0] >= h or index_tr[1] < 0 or index_tr[1] >= w:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	254 p.matrix_tr_corners_rows[y][x] = 0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	255 p.matrix_tr_corners_cols[y][x] = 0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	256 p.matrix_tr_multiply[y,x] = 0
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	257 else:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	258 p.matrix_tr_corners_rows[y][x] = index_tr[0]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	259 p.matrix_tr_corners_cols[y][x] = index_tr[1]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	260 p.matrix_tr_multiply[y,x] = (1.0-x_ratio)*y_ratio
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	261
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	262 # if bottom left outside bounds
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	263 if index_bl[0] < 0 or index_bl[0] >= h or index_bl[1] < 0 or index_bl[1] >= w:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	264 p.matrix_bl_corners_rows[y][x] = 0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	265 p.matrix_bl_corners_cols[y][x] = 0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	266 p.matrix_bl_multiply[y,x] = 0
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	267 else:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	268 p.matrix_bl_corners_rows[y][x] = index_bl[0]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	269 p.matrix_bl_corners_cols[y][x] = index_bl[1]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	270 p.matrix_bl_multiply[y,x] = x_ratio*(1.0-y_ratio)
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	271
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	272 # if bottom right outside bounds
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	273 if index_br[0] < 0 or index_br[0] >= h or index_br[1] < 0 or index_br[1] >= w:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	274 p.matrix_br_corners_rows[y][x] = 0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	275 p.matrix_br_corners_cols[y][x] = 0
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	276 p.matrix_br_multiply[y,x] = 0
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	277 else:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	278 p.matrix_br_corners_rows[y][x] = index_br[0]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	279 p.matrix_br_corners_cols[y][x] = index_br[1]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	280 p.matrix_br_multiply[y,x] = (1.0-x_ratio)*(1.0-y_ratio)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	281
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	282 # not really necessary, but anyway
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	283 return p
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	284
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	285 def transform_image(self, image):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	286 p = self.current_params
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	287
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	288 # index pixels to get the 4 corners for bilinear combination
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	289 tl_pixels = image[p.matrix_tl_corners_rows, p.matrix_tl_corners_cols]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	290 tr_pixels = image[p.matrix_tr_corners_rows, p.matrix_tr_corners_cols]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	291 bl_pixels = image[p.matrix_bl_corners_rows, p.matrix_bl_corners_cols]
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	292 br_pixels = image[p.matrix_br_corners_rows, p.matrix_br_corners_cols]
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	293
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	294 # bilinear ratios, elemwise multiply
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	295 tl_pixels = numpy.multiply(tl_pixels, p.matrix_tl_multiply)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	296 tr_pixels = numpy.multiply(tr_pixels, p.matrix_tr_multiply)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	297 bl_pixels = numpy.multiply(bl_pixels, p.matrix_bl_multiply)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	298 br_pixels = numpy.multiply(br_pixels, p.matrix_br_multiply)
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	299
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	300 # sum to finish bilinear combination
30 a8ac3402eb45 Correction aux distortions élastiques (retourne float32) suite à tests avec testmod.py fsavard <francois.savard@polymtl.ca> parents: 29 diff changeset	301 return numpy.sum([tl_pixels,tr_pixels,bl_pixels,br_pixels], axis=0).astype(numpy.float32)
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	302
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	303 # TESTS ----------------------------------------------------------------------
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	304
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	305 def _load_image(filepath):
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	306 _RGB_TO_GRAYSCALE = [0.3, 0.59, 0.11, 0.0]
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	307 img = Image.open(filepath)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	308 img = numpy.asarray(img)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	309 if len(img.shape) > 2:
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	310 img = (img * _RGB_TO_GRAYSCALE).sum(axis=2)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	311 return (img / 255.0).astype('float')
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	312
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	313 def _specific_test():
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	314 imgpath = os.path.join(_TEST_DIR, "d.png")
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	315 img = _load_image(imgpath)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	316 dist = LocalElasticDistorter((32,32))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	317 print dist.regenerate_parameters(0.5)
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	318 img = dist.transform_image(img)
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	319 print dist.get_parameters_determined_by_complexity(0.4)
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	320 pylab.imshow(img)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	321 pylab.show()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	322
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	323 def _complexity_tests():
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	324 imgpath = os.path.join(_TEST_DIR, "d.png")
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	325 dist = LocalElasticDistorter((32,32))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	326 orig_img = _load_image(imgpath)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	327 html_content = '''<html><body>Original:<br/><img src='d.png'>'''
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	328 for complexity in numpy.arange(0.0, 1.1, 0.1):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	329 html_content += '<br/>Complexity: ' + str(complexity) + '<br/>'
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	330 for i in range(10):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	331 t1 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	332 dist.regenerate_parameters(complexity)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	333 t2 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	334 print "diff", t2-t1
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	335 img = dist.transform_image(orig_img)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	336 filename = "complexity_" + str(complexity) + "_" + str(i) + ".png"
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	337 new_path = os.path.join(_TEST_DIR, filename)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	338 _save_image(img, new_path)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	339 html_content += '<img src="' + filename + '">'
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	340 html_content += "</body></html>"
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	341 html_file = open(os.path.join(_TEST_DIR, "complexity.html"), "w")
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	342 html_file.write(html_content)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	343 html_file.close()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	344
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	345 def _complexity_benchmark():
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	346 imgpath = os.path.join(_TEST_DIR, "d.png")
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	347 dist = LocalElasticDistorter((32,32))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	348 orig_img = _load_image(imgpath)
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	349
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	350 # time the first 10
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	351 t1 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	352 for i in range(10):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	353 dist.regenerate_parameters(0.2)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	354 img = dist.transform_image(orig_img)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	355 t2 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	356
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	357 print "first 10, total = ", t2-t1, ", avg=", (t2-t1)/10
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	358
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	359 # time the next 40
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	360 t1 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	361 for i in range(40):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	362 dist.regenerate_parameters(0.2)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	363 img = dist.transform_image(orig_img)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	364 t2 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	365
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	366 print "next 40, total = ", t2-t1, ", avg=", (t2-t1)/40
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	367
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	368 # time the next 50
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	369 t1 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	370 for i in range(50):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	371 dist.regenerate_parameters(0.2)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	372 img = dist.transform_image(orig_img)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	373 t2 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	374
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	375 print "next 50, total = ", t2-t1, ", avg=", (t2-t1)/50
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	376
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	377 # time the next 1000
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	378 t1 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	379 for i in range(1000):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	380 dist.regenerate_parameters(0.2)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	381 img = dist.transform_image(orig_img)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	382 t2 = time.time()
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	383
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	384 print "next 1000, total = ", t2-t1, ", avg=", (t2-t1)/1000
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	385
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	386
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	387
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	388 def _save_image(img, path):
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	389 img2 = Image.fromarray((img * 255).astype('uint8'), "L")
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	390 img2.save(path)
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	391
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	392 # TODO: reformat to follow new class... it function of complexity now
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	393 '''
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	394 def _distorter_tests():
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	395 #import pylab
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	396 #pylab.imshow(img)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	397 #pylab.show()
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	398
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	399 for letter in ("d", "a", "n", "o"):
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	400 img = _load_image("tests/" + letter + ".png")
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	401 for alpha in (1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0):
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	402 for sigma in (1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0):
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	403 id = LocalElasticDistorter((32,32))
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	404 img2 = id.distort_image(img)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	405 img2 = Image.fromarray((img2 * 255).astype('uint8'), "L")
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	406 img2.save("tests/"+letter+"_alpha"+str(alpha)+"_sigma"+str(sigma)+".png")
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	407 '''
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	408
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	409 def _benchmark():
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	410 img = _load_image("tests/d.png")
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	411 dist = LocalElasticDistorter((32,32))
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	412 dist.regenerate_parameters(0.0)
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	413 import time
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	414 t1 = time.time()
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	415 for i in range(10000):
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	416 if i % 1000 == 0:
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	417 print "-"
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	418 dist.distort_image(img)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	419 t2 = time.time()
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	420 print "t2-t1", t2-t1
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	421 print "avg", 10000/(t2-t1)
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	422
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	423 if __name__ == '__main__':
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	424 import time
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	425 import pylab
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	426 import Image
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	427 import os.path
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	428 #_distorter_tests()
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	429 #_benchmark()
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	430 _specific_test()
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	431 #_complexity_tests()
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	432 #_complexity_benchmark()
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	433
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	434
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	435

Mercurial > ift6266

annotate transformations/local_elastic_distortions.py @ 39:17caecc92544