ift6266: transformations/local_elastic

annotate transformations/local_elastic_distortions.py @ 72:af2f9252dd14

forgot to import sys in testmod

author	Arnaud Bergeron <abergeron@gmail.com>
date	Wed, 10 Feb 2010 11:34:32 -0500
parents	c89defea1e65
children	b3d76ebf2fac

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
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	26 _TEST_DIR = "/u/savardf/ift6266/debug_images/"
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	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
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	65 self.current_complexity_10 = 0
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	66 self.current_complexity = 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	67
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	69 # (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	70 # 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	71 # 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	72 # randomization, but we're much faster).
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	73 self.to_precompute_per_complexity = 50
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	74
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	76 self.current_params = None
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	77 self.precomputed_params = [[] for i in range(10)]
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	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 #
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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_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	81 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	82
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	84 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	85
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	86 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	87 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	88
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	89 def _floor_complexity(self, complexity):
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	90 return self._to_complexity_10(complexity) / 10.0
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	91
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	92 def _to_complexity_10(self, complexity):
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	93 return min(9, max(0, int(complexity * 10)))
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	94
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	95 def regenerate_parameters(self, complexity):
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	96 complexity_10 = self._to_complexity_10(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	97
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	98 if complexity_10 != self.current_complexity_10:
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	99 self.current_complexity_10 = complexity_10
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	100 self.current_complexity = self._floor_complexity(complexity)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	101
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	102 if len(self.precomputed_params[complexity_10]) <= self.to_precompute_per_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	103 # 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	104 # 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	105 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	106 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	107 self.current_params = new_params
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	108 self.precomputed_params[complexity_10].append(new_params)
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	109 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	110 # 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	111 # 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	112 # when the field was generated
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	113 idx = numpy.random.randint(0, len(self.precomputed_params[complexity_10]))
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	114 self.current_params = self.precomputed_params[complexity_10][idx]
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	115
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	116 # 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	117 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	118
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	119 def get_parameters_determined_by_complexity(self, complexity):
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	120 tmp_params = self._initialize_new_params(_floor_complexity(complexity))
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	121 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	122
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	123 # 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	124 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	125 # 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	126 # 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	127 # 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	128 # 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	129 # 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	130 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	131 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	132 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	133 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	134 # 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	135 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	136 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	137 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	138 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	139 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	140 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	141 # 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	142 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	143
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 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	145 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	146
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	148 # 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	149 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	150 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	151 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	152 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	153 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	154 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	155
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	156 # 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	157 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	158
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 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	160
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	161
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	162 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	163 if not complexity:
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	164 complexity = self.current_complexity
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	165
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	166 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	167
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	169 # 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	170 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	171
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	172 # 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	173 # 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	174 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	175
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	177 # 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	178 # 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	179 # 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	180 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	181
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	182 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	183
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	184 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	185 '''
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 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	187 - 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	188 - 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	189 - 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	190 - 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	191 - 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	192 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	193 (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	194 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	195 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	196 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	197 - 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	198 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	199 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	200 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	201 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	202 - 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	203 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	204 '''
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	205
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	206 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	207
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	208 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	209 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	210 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	211
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 #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	213 #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	214
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	215 # 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	216 # "_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	217 # "_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	218 # (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	219 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	220
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	221 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	222 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	223 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	224 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	225
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	227 # (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	228 # 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	229 # 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	230 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	231
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 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	233 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	234
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 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	236 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	237 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	238 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	239
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	240 # 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	241 # 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	242 # (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	243 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	244 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	245
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	246 # 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	247 # 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	248
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	249 # 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	250 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	251 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	252 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	253 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	254 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	255 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	256 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	257 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	258
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	259 # 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	260 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	261 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	262 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	263 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	264 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	265 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	266 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	267 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	268
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	269 # 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	270 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	271 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	272 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	273 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	274 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	275 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	276 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	277 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	278
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	279 # 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	280 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	281 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	282 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	283 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	284 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	285 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	286 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	287 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	288
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	290 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	291
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	292 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	293 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	294
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	295 # 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	296 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	297 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	298 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	299 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	300
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	301 # 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	302 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	303 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	304 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	305 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	306
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 # 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	308 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	309
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 # 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	311
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 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	313 _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	314 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	315 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	316 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	317 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	318 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	319
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	320 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	321 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	322 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	323 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	324 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	325 img = dist.transform_image(img)
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	326 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	327 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	328 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	329
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 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	331 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	332 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	333 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	334 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	335 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	336 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	337 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	338 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	339 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	340 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	341 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	342 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	343 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	344 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	345 _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	346 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	347 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	348 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	349 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	350 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	351
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 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	353 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	354 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	355 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	356
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	357 for cpx in (0.21, 0.35):
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	358 # time the first 10
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	359 t1 = time.time()
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	360 for i in range(10):
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	361 dist.regenerate_parameters(cpx)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	362 img = dist.transform_image(orig_img)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	363 t2 = time.time()
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	364
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	365 print "first 10, total = ", t2-t1, ", avg=", (t2-t1)/10
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	366
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	367 # time the next 40
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	368 t1 = time.time()
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	369 for i in range(40):
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	370 dist.regenerate_parameters(cpx)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	371 img = dist.transform_image(orig_img)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	372 t2 = time.time()
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	373
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	374 print "next 40, total = ", t2-t1, ", avg=", (t2-t1)/40
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	375
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	376 # time the next 50
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	377 t1 = time.time()
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	378 for i in range(50):
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	379 dist.regenerate_parameters(cpx)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	380 img = dist.transform_image(orig_img)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	381 t2 = time.time()
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	382
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	383 print "next 50, total = ", t2-t1, ", avg=", (t2-t1)/50
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	384
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	385 # time the next 1000
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	386 t1 = time.time()
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	387 for i in range(1000):
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	388 dist.regenerate_parameters(cpx)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	389 img = dist.transform_image(orig_img)
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	390 t2 = time.time()
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	391
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	392 print "next 1000, total = ", t2-t1, ", avg=", (t2-t1)/1000
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	393
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	394 # time the next 1000 with old 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	395 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	396 for i in range(1000):
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	397 dist.regenerate_parameters(0.21)
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	398 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	399 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	400
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	401 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	402
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	404
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	405
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	406 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	407 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	408 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	409
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	410 # 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	411 '''
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	412 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	413 #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	414 #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	415 #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	416
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 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	418 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	419 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	420 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	421 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	422 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	423 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	424 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	425 '''
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
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	427 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	428 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	429 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	430 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	431 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	432 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	433 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	434 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	435 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	436 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	437 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	438 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	439 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	440
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	441 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	442 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	443 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	444 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	445 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	446 #_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	447 #_benchmark()
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	448 #_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	449 #_complexity_tests()
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	450 _complexity_benchmark()
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	451
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	452
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	453

Mercurial > ift6266

annotate transformations/local_elastic_distortions.py @ 72:af2f9252dd14