ift6266: data_generation/transformations/local_elastic

annotate data_generation/transformations/local_elastic_distortions.py @ 618:14ba0120baff

review response changes

author	Yoshua Bengio <bengioy@iro.umontreal.ca>
date	Sun, 09 Jan 2011 14:13:23 -0500
parents	1f5937e9e530
children

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):
86 b3d76ebf2fac Modifs pour interface parameters determined by complexity fsavard <francois.savard@polymtl.ca> parents: 52 diff changeset	87 return []
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	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
86 b3d76ebf2fac Modifs pour interface parameters determined by complexity fsavard <francois.savard@polymtl.ca> parents: 52 diff changeset	123 def get_settings_names_determined_by_complexity(self, complexity):
b3d76ebf2fac Modifs pour interface parameters determined by complexity fsavard <francois.savard@polymtl.ca> parents: 52 diff changeset	124 return ['alpha', 'sigma']
b3d76ebf2fac Modifs pour interface parameters determined by complexity fsavard <francois.savard@polymtl.ca> parents: 52 diff changeset	125
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	126 # 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	127 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	128 # 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	129 # 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	130 # 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	131 # 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	132 # 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	133 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	134 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	135 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	136 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	137 # 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	138 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	139 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	140 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	141 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	142 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	143 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	144 # 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	145 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	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 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	148 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	149
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	151 # 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	152 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	153 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	154 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	155 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	156 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	157 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	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 # 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	160 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	161
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	162 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	163
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	164
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	165 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	166 if not complexity:
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	167 complexity = self.current_complexity
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	168
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	169 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	170
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	171 # 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	172 # 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	173 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	174
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 # 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	176 # 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	177 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	178
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	180 # 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	181 # 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	182 # 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	183 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	184
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	185 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	186
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	187 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	188 '''
8d1c37190122 Ajouté 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 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	190 - 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	191 - 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	192 - 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	193 - 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	194 - 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	195 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	196 (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	197 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	198 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	199 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	200 - 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	201 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	202 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	203 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	204 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	205 - 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	206 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	207 '''
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	208
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	209 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	210
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	211 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	212 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	213 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	214
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	215 #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	216 #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	217
8d1c37190122 Ajouté 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 # 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	219 # "_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	220 # "_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	221 # (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	222 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	223
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	224 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	225 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	226 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	227 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	228
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	230 # (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	231 # 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	232 # 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	233 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	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 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	236 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	237
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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_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	239 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	240 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	241 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	242
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	244 # 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	245 # (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	246 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	247 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	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 # 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	250 # 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	251
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	252 # if top 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	253 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	254 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	255 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	256 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	257 else:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	258 p.matrix_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	259 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	260 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	261
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	262 # if 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	263 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	264 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	265 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	266 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	267 else:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	268 p.matrix_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	269 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	270 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	271
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	272 # if bottom 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	273 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	274 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	275 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	276 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	277 else:
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	278 p.matrix_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	279 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	280 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	281
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	282 # 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	283 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	284 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	285 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	286 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	287 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	288 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	289 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	290 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	291
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 # 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	293 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	294
24 010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	295 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	296 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	297
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	298 # 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	299 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	300 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	301 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	302 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	303
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	304 # 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	305 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	306 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	307 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	308 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	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 # 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	311 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	312
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	313 # 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	314
8d1c37190122 Ajouté 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 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	316 _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	317 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	318 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	319 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	320 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	321 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	322
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	323 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	324 imgpath = os.path.join(_TEST_DIR, "d.png")
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	325 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	326 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	327 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	328 img = dist.transform_image(img)
b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	329 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	330 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	331 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	332
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 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	334 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	335 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	336 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	337 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	338 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	339 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	340 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	341 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	342 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	343 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	344 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	345 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	346 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	347 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	348 _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	349 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	350 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	351 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	352 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	353 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	354
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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 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	356 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	357 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	358 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	359
52 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 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	361 # 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	362 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	363 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	364 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	365 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	366 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	367
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	368 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	369
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	370 # 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	371 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	372 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	373 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	374 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	375 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	376
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	377 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	378
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	379 # 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	380 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	381 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	382 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	383 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	384 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	385
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	386 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	387
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	388 # 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	389 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	390 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	391 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	392 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	393 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	394
c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	395 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	396
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 # 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	398 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	399 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	400 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	401 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	402 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	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 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	405
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to 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
52 c89defea1e65 Modification aux déformations élastiques pour mettre en cache 50x10 champs de déformation, selon 10 niveaux de complexité fsavard parents: 30 diff changeset	408
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	409 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	410 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	411 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	412
010e826b41e8 Modifications to elastic distortions: fixed an important bug with distortions themselves (now result is much nicer visually), made interface to conform to Transformation standard, and added ability to save a certain amount of distortion fields to reuse them if complexity doesn't change fsavard <francois.savard@polymtl.ca> parents: 5 diff changeset	413 # 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	414 '''
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	415 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	416 #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	417 #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	418 #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	419
8d1c37190122 Ajouté 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 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	421 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	422 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	423 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	424 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	425 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	426 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	427 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	428 '''
5 8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	429
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	430 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	431 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	432 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	433 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	434 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	435 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	436 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	437 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	438 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	439 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	440 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	441 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	442 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	443
8d1c37190122 Ajouté 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 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	445 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	446 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	447 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	448 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	449 #_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	450 #_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	451 #_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	452 #_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	453 _complexity_benchmark()
29 b67d729ebfe3 Adapted to avoid saving parameters completely determined by complexity fsavard <francois.savard@polymtl.ca> parents: 24 diff changeset	454
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	455
8d1c37190122 Ajouté code de déformations élastiques locales, adapté depuis un travail que j'ai fait la session dernière fsavard <francois.savard@polymtl.ca> parents: diff changeset	456

Mercurial > ift6266

annotate data_generation/transformations/local_elastic_distortions.py @ 618:14ba0120baff