-
Notifications
You must be signed in to change notification settings - Fork 0
/
autoaugment.py
312 lines (259 loc) · 14.3 KB
/
autoaugment.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
# This Code is from https://github.com/DeepVoltaire/AutoAugment
from PIL import Image, ImageEnhance, ImageOps
import numpy as np
import random
import matplotlib
matplotlib.use('agg')
import matplotlib.pyplot as plt
class ImageNetPolicy(object):
""" Randomly choose one of the best 24 Sub-policies on ImageNet.
Example:
>>> policy = ImageNetPolicy()
>>> transformed = policy(image)
Example as a PyTorch Transform:
>>> transform=transforms.Compose([
>>> transforms.Resize(256),
>>> ImageNetPolicy(),
>>> transforms.ToTensor()])
"""
def __init__(self, fillcolor=(128, 128, 128)):
self.policies = [
SubPolicy(0.4, "posterize", 8, 0.6, "rotate", 9, fillcolor),
SubPolicy(0.6, "solarize", 5, 0.6, "autocontrast", 5, fillcolor),
SubPolicy(0.8, "equalize", 8, 0.6, "equalize", 3, fillcolor),
SubPolicy(0.6, "posterize", 7, 0.6, "posterize", 6, fillcolor),
SubPolicy(0.4, "equalize", 7, 0.2, "solarize", 4, fillcolor),
SubPolicy(0.4, "equalize", 4, 0.8, "rotate", 8, fillcolor),
SubPolicy(0.6, "solarize", 3, 0.6, "equalize", 7, fillcolor),
SubPolicy(0.8, "posterize", 5, 1.0, "equalize", 2, fillcolor),
SubPolicy(0.2, "rotate", 3, 0.6, "solarize", 8, fillcolor),
SubPolicy(0.6, "equalize", 8, 0.4, "posterize", 6, fillcolor),
SubPolicy(0.8, "rotate", 8, 0.4, "color", 0, fillcolor),
SubPolicy(0.4, "rotate", 9, 0.6, "equalize", 2, fillcolor),
SubPolicy(0.0, "equalize", 7, 0.8, "equalize", 8, fillcolor),
SubPolicy(0.6, "invert", 4, 1.0, "equalize", 8, fillcolor),
SubPolicy(0.6, "color", 4, 1.0, "contrast", 8, fillcolor),
SubPolicy(0.8, "rotate", 8, 1.0, "color", 2, fillcolor),
SubPolicy(0.8, "color", 8, 0.8, "solarize", 7, fillcolor),
SubPolicy(0.4, "sharpness", 7, 0.6, "invert", 8, fillcolor),
SubPolicy(0.6, "shearX", 5, 1.0, "equalize", 9, fillcolor),
SubPolicy(0.4, "color", 0, 0.6, "equalize", 3, fillcolor),
SubPolicy(0.4, "equalize", 7, 0.2, "solarize", 4, fillcolor),
SubPolicy(0.6, "solarize", 5, 0.6, "autocontrast", 5, fillcolor),
SubPolicy(0.6, "invert", 4, 1.0, "equalize", 8, fillcolor),
SubPolicy(0.6, "color", 4, 1.0, "contrast", 8, fillcolor),
SubPolicy(0.8, "equalize", 8, 0.6, "equalize", 3, fillcolor)
]
def __call__(self, img):
policy_idx = random.randint(0, len(self.policies) - 1)
return self.policies[policy_idx](img)
def __repr__(self):
return "AutoAugment ImageNet Policy"
class ReIDPolicy(object):
""" Randomly choose one of the best 24 Sub-policies on ImageNet.
Example:
>>> policy = ImageNetPolicy()
>>> transformed = policy(image)
Example as a PyTorch Transform:
>>> transform=transforms.Compose([
>>> transforms.Resize(256),
>>> ImageNetPolicy(),
>>> transforms.ToTensor()])
"""
def __init__(self, fillcolor=(128, 128, 128)):
self.policies = [
#SubPolicy(0.4, "posterize", 8, 0.6, "rotate", 9, fillcolor),
#SubPolicy(0.6, "solarize", 5, 0.6, "autocontrast", 5, fillcolor),
SubPolicy(0.8, "equalize", 8, 0.6, "equalize", 3, fillcolor),
SubPolicy(0.6, "posterize", 7, 0.6, "posterize", 6, fillcolor),
#SubPolicy(0.4, "equalize", 7, 0.2, "solarize", 4, fillcolor),
#SubPolicy(0.4, "equalize", 4, 0.8, "rotate", 8, fillcolor),
#SubPolicy(0.6, "solarize", 3, 0.6, "equalize", 7, fillcolor),
SubPolicy(0.8, "posterize", 5, 1.0, "equalize", 2, fillcolor),
#SubPolicy(0.2, "rotate", 3, 0.6, "solarize", 8, fillcolor),
SubPolicy(0.6, "equalize", 8, 0.4, "posterize", 6, fillcolor),
#SubPolicy(0.8, "rotate", 8, 0.4, "color", 0, fillcolor),
#SubPolicy(0.4, "rotate", 9, 0.6, "equalize", 2, fillcolor),
SubPolicy(0.0, "equalize", 7, 0.8, "equalize", 8, fillcolor),
#SubPolicy(0.6, "invert", 4, 1.0, "equalize", 8, fillcolor),
SubPolicy(0.6, "color", 4, 1.0, "contrast", 8, fillcolor),
#SubPolicy(0.8, "rotate", 8, 1.0, "color", 2, fillcolor),
#SubPolicy(0.8, "color", 8, 0.8, "solarize", 7, fillcolor),
#SubPolicy(0.4, "sharpness", 7, 0.6, "invert", 8, fillcolor),
SubPolicy(0.6, "shearX", 5, 1.0, "equalize", 9, fillcolor),
SubPolicy(0.4, "color", 0, 0.6, "equalize", 3, fillcolor),
#SubPolicy(0.4, "equalize", 7, 0.2, "solarize", 4, fillcolor),
SubPolicy(0.6, "solarize", 5, 0.6, "autocontrast", 5, fillcolor),
#SubPolicy(0.6, "invert", 4, 1.0, "equalize", 8, fillcolor),
SubPolicy(0.6, "color", 4, 1.0, "contrast", 8, fillcolor),
SubPolicy(0.8, "equalize", 8, 0.6, "equalize", 3, fillcolor)
]
def __call__(self, img):
policy_idx = random.randint(0, len(self.policies) - 1)
return self.policies[policy_idx](img)
def __repr__(self):
return "ReID Policy"
class CIFAR10Policy(object):
""" Randomly choose one of the best 25 Sub-policies on CIFAR10.
Example:
>>> policy = CIFAR10Policy()
>>> transformed = policy(image)
Example as a PyTorch Transform:
>>> transform=transforms.Compose([
>>> transforms.Resize(256),
>>> CIFAR10Policy(),
>>> transforms.ToTensor()])
"""
def __init__(self, fillcolor=(128, 128, 128)):
self.policies = [
SubPolicy(0.1, "invert", 7, 0.2, "contrast", 6, fillcolor),
SubPolicy(0.7, "rotate", 2, 0.3, "translateX", 9, fillcolor),
SubPolicy(0.8, "sharpness", 1, 0.9, "sharpness", 3, fillcolor),
SubPolicy(0.5, "shearY", 8, 0.7, "translateY", 9, fillcolor),
SubPolicy(0.5, "autocontrast", 8, 0.9, "equalize", 2, fillcolor),
SubPolicy(0.2, "shearY", 7, 0.3, "posterize", 7, fillcolor),
SubPolicy(0.4, "color", 3, 0.6, "brightness", 7, fillcolor),
SubPolicy(0.3, "sharpness", 9, 0.7, "brightness", 9, fillcolor),
SubPolicy(0.6, "equalize", 5, 0.5, "equalize", 1, fillcolor),
SubPolicy(0.6, "contrast", 7, 0.6, "sharpness", 5, fillcolor),
SubPolicy(0.7, "color", 7, 0.5, "translateX", 8, fillcolor),
SubPolicy(0.3, "equalize", 7, 0.4, "autocontrast", 8, fillcolor),
SubPolicy(0.4, "translateY", 3, 0.2, "sharpness", 6, fillcolor),
SubPolicy(0.9, "brightness", 6, 0.2, "color", 8, fillcolor),
SubPolicy(0.5, "solarize", 2, 0.0, "invert", 3, fillcolor),
SubPolicy(0.2, "equalize", 0, 0.6, "autocontrast", 0, fillcolor),
SubPolicy(0.2, "equalize", 8, 0.8, "equalize", 4, fillcolor),
SubPolicy(0.9, "color", 9, 0.6, "equalize", 6, fillcolor),
SubPolicy(0.8, "autocontrast", 4, 0.2, "solarize", 8, fillcolor),
SubPolicy(0.1, "brightness", 3, 0.7, "color", 0, fillcolor),
SubPolicy(0.4, "solarize", 5, 0.9, "autocontrast", 3, fillcolor),
SubPolicy(0.9, "translateY", 9, 0.7, "translateY", 9, fillcolor),
SubPolicy(0.9, "autocontrast", 2, 0.8, "solarize", 3, fillcolor),
SubPolicy(0.8, "equalize", 8, 0.1, "invert", 3, fillcolor),
SubPolicy(0.7, "translateY", 9, 0.9, "autocontrast", 1, fillcolor)
]
def __call__(self, img):
policy_idx = random.randint(0, len(self.policies) - 1)
return self.policies[policy_idx](img)
def __repr__(self):
return "AutoAugment CIFAR10 Policy"
class SVHNPolicy(object):
""" Randomly choose one of the best 25 Sub-policies on SVHN.
Example:
>>> policy = SVHNPolicy()
>>> transformed = policy(image)
Example as a PyTorch Transform:
>>> transform=transforms.Compose([
>>> transforms.Resize(256),
>>> SVHNPolicy(),
>>> transforms.ToTensor()])
"""
def __init__(self, fillcolor=(128, 128, 128)):
self.policies = [
SubPolicy(0.9, "shearX", 4, 0.2, "invert", 3, fillcolor),
SubPolicy(0.9, "shearY", 8, 0.7, "invert", 5, fillcolor),
SubPolicy(0.6, "equalize", 5, 0.6, "solarize", 6, fillcolor),
SubPolicy(0.9, "invert", 3, 0.6, "equalize", 3, fillcolor),
SubPolicy(0.6, "equalize", 1, 0.9, "rotate", 3, fillcolor),
SubPolicy(0.9, "shearX", 4, 0.8, "autocontrast", 3, fillcolor),
SubPolicy(0.9, "shearY", 8, 0.4, "invert", 5, fillcolor),
SubPolicy(0.9, "shearY", 5, 0.2, "solarize", 6, fillcolor),
SubPolicy(0.9, "invert", 6, 0.8, "autocontrast", 1, fillcolor),
SubPolicy(0.6, "equalize", 3, 0.9, "rotate", 3, fillcolor),
SubPolicy(0.9, "shearX", 4, 0.3, "solarize", 3, fillcolor),
SubPolicy(0.8, "shearY", 8, 0.7, "invert", 4, fillcolor),
SubPolicy(0.9, "equalize", 5, 0.6, "translateY", 6, fillcolor),
SubPolicy(0.9, "invert", 4, 0.6, "equalize", 7, fillcolor),
SubPolicy(0.3, "contrast", 3, 0.8, "rotate", 4, fillcolor),
SubPolicy(0.8, "invert", 5, 0.0, "translateY", 2, fillcolor),
SubPolicy(0.7, "shearY", 6, 0.4, "solarize", 8, fillcolor),
SubPolicy(0.6, "invert", 4, 0.8, "rotate", 4, fillcolor),
SubPolicy(0.3, "shearY", 7, 0.9, "translateX", 3, fillcolor),
SubPolicy(0.1, "shearX", 6, 0.6, "invert", 5, fillcolor),
SubPolicy(0.7, "solarize", 2, 0.6, "translateY", 7, fillcolor),
SubPolicy(0.8, "shearY", 4, 0.8, "invert", 8, fillcolor),
SubPolicy(0.7, "shearX", 9, 0.8, "translateY", 3, fillcolor),
SubPolicy(0.8, "shearY", 5, 0.7, "autocontrast", 3, fillcolor),
SubPolicy(0.7, "shearX", 2, 0.1, "invert", 5, fillcolor)
]
def __call__(self, img):
policy_idx = random.randint(0, len(self.policies) - 1)
return self.policies[policy_idx](img)
def __repr__(self):
return "AutoAugment SVHN Policy"
class SubPolicy(object):
def __init__(self, p1, operation1, magnitude_idx1, p2, operation2, magnitude_idx2, fillcolor=(128, 128, 128)):
ranges = {
"shearX": np.linspace(0, 0.3, 10),
"shearY": np.linspace(0, 0.3, 10),
"translateX": np.linspace(0, 150 / 331, 10),
"translateY": np.linspace(0, 150 / 331, 10),
"rotate": np.linspace(0, 30, 10),
"color": np.linspace(0.0, 0.9, 10),
"posterize": np.round(np.linspace(8, 4, 10), 0).astype(np.int),
"solarize": np.linspace(256, 0, 10),
"contrast": np.linspace(0.0, 0.9, 10),
"sharpness": np.linspace(0.0, 0.9, 10),
"brightness": np.linspace(0.0, 0.9, 10),
"autocontrast": [0] * 10,
"equalize": [0] * 10,
"invert": [0] * 10
}
# from https://stackoverflow.com/questions/5252170/specify-image-filling-color-when-rotating-in-python-with-pil-and-setting-expand
def rotate_with_fill(img, magnitude):
rot = img.convert("RGBA").rotate(magnitude)
return Image.composite(rot, Image.new("RGBA", rot.size, (128,) * 4), rot).convert(img.mode)
func = {
"shearX": lambda img, magnitude: img.transform(
img.size, Image.AFFINE, (1, magnitude * random.choice([-1, 1]), 0, 0, 1, 0),
Image.BICUBIC, fillcolor=fillcolor),
"shearY": lambda img, magnitude: img.transform(
img.size, Image.AFFINE, (1, 0, 0, magnitude * random.choice([-1, 1]), 1, 0),
Image.BICUBIC, fillcolor=fillcolor),
"translateX": lambda img, magnitude: img.transform(
img.size, Image.AFFINE, (1, 0, magnitude * img.size[0] * random.choice([-1, 1]), 0, 1, 0),
fillcolor=fillcolor),
"translateY": lambda img, magnitude: img.transform(
img.size, Image.AFFINE, (1, 0, 0, 0, 1, magnitude * img.size[1] * random.choice([-1, 1])),
fillcolor=fillcolor),
"rotate": lambda img, magnitude: rotate_with_fill(img, magnitude),
# "rotate": lambda img, magnitude: img.rotate(magnitude * random.choice([-1, 1])),
"color": lambda img, magnitude: ImageEnhance.Color(img).enhance(1 + magnitude * random.choice([-1, 1])),
"posterize": lambda img, magnitude: ImageOps.posterize(img, magnitude),
"solarize": lambda img, magnitude: ImageOps.solarize(img, magnitude),
"contrast": lambda img, magnitude: ImageEnhance.Contrast(img).enhance(
1 + magnitude * random.choice([-1, 1])),
"sharpness": lambda img, magnitude: ImageEnhance.Sharpness(img).enhance(
1 + magnitude * random.choice([-1, 1])),
"brightness": lambda img, magnitude: ImageEnhance.Brightness(img).enhance(
1 + magnitude * random.choice([-1, 1])),
"autocontrast": lambda img, magnitude: ImageOps.autocontrast(img),
"equalize": lambda img, magnitude: ImageOps.equalize(img),
"invert": lambda img, magnitude: ImageOps.invert(img)
}
# self.name = "{}_{:.2f}_and_{}_{:.2f}".format(
# operation1, ranges[operation1][magnitude_idx1],
# operation2, ranges[operation2][magnitude_idx2])
self.p1 = p1
self.operation1 = func[operation1]
self.magnitude1 = ranges[operation1][magnitude_idx1]
self.p2 = p2
self.operation2 = func[operation2]
self.magnitude2 = ranges[operation2][magnitude_idx2]
def __call__(self, img):
if random.random() < self.p1: img = self.operation1(img, self.magnitude1)
if random.random() < self.p2: img = self.operation2(img, self.magnitude2)
return img
def show_sixteen(images, titles=0):
f, axarr = plt.subplots(2, 4, figsize=(15, 15), gridspec_kw={"wspace": 0, "hspace": 0})
for idx, ax in enumerate(f.axes):
ax.imshow(images[idx])
ax.axis("off")
if titles: ax.set_title(titles[idx])
f.savefig('DA.jpg')
if __name__ == '__main__':
img = Image.open("../Market/query/1493_c1s6_013171_00.jpg")
policy = ReIDPolicy()
imgs = []
for _ in range(8): imgs.append(policy(img))
show_sixteen(imgs)