-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathEval.py
249 lines (216 loc) · 8.3 KB
/
Eval.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
import argparse
import os
import torch
import torch.nn as nn
from PIL import Image
from os.path import basename
from os.path import splitext
from torchvision import transforms
from torchvision.utils import save_image
def calc_mean_std(feat, eps=1e-5):
# eps is a small value added to the variance to avoid divide-by-zero.
size = feat.size()
assert (len(size) == 4)
N, C = size[:2]
feat_var = feat.view(N, C, -1).var(dim=2) + eps
feat_std = feat_var.sqrt().view(N, C, 1, 1)
feat_mean = feat.view(N, C, -1).mean(dim=2).view(N, C, 1, 1)
return feat_mean, feat_std
def mean_variance_norm(feat):
size = feat.size()
mean, std = calc_mean_std(feat)
normalized_feat = (feat - mean.expand(size)) / std.expand(size)
return normalized_feat
decoder = nn.Sequential(
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(512, 256, (3, 3)),
nn.ReLU(),
nn.Upsample(scale_factor=2, mode='nearest'),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(256, 256, (3, 3)),
nn.ReLU(),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(256, 256, (3, 3)),
nn.ReLU(),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(256, 256, (3, 3)),
nn.ReLU(),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(256, 128, (3, 3)),
nn.ReLU(),
nn.Upsample(scale_factor=2, mode='nearest'),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(128, 128, (3, 3)),
nn.ReLU(),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(128, 64, (3, 3)),
nn.ReLU(),
nn.Upsample(scale_factor=2, mode='nearest'),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(64, 64, (3, 3)),
nn.ReLU(),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(64, 3, (3, 3)),
)
vgg = nn.Sequential(
nn.Conv2d(3, 3, (1, 1)),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(3, 64, (3, 3)),
nn.ReLU(), # relu1-1
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(64, 64, (3, 3)),
nn.ReLU(), # relu1-2
nn.MaxPool2d((2, 2), (2, 2), (0, 0), ceil_mode=True),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(64, 128, (3, 3)),
nn.ReLU(), # relu2-1
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(128, 128, (3, 3)),
nn.ReLU(), # relu2-2
nn.MaxPool2d((2, 2), (2, 2), (0, 0), ceil_mode=True),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(128, 256, (3, 3)),
nn.ReLU(), # relu3-1
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(256, 256, (3, 3)),
nn.ReLU(), # relu3-2
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(256, 256, (3, 3)),
nn.ReLU(), # relu3-3
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(256, 256, (3, 3)),
nn.ReLU(), # relu3-4
nn.MaxPool2d((2, 2), (2, 2), (0, 0), ceil_mode=True),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(256, 512, (3, 3)),
nn.ReLU(), # relu4-1, this is the last layer used
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(512, 512, (3, 3)),
nn.ReLU(), # relu4-2
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(512, 512, (3, 3)),
nn.ReLU(), # relu4-3
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(512, 512, (3, 3)),
nn.ReLU(), # relu4-4
nn.MaxPool2d((2, 2), (2, 2), (0, 0), ceil_mode=True),
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(512, 512, (3, 3)),
nn.ReLU(), # relu5-1
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(512, 512, (3, 3)),
nn.ReLU(), # relu5-2
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(512, 512, (3, 3)),
nn.ReLU(), # relu5-3
nn.ReflectionPad2d((1, 1, 1, 1)),
nn.Conv2d(512, 512, (3, 3)),
nn.ReLU() # relu5-4
)
class SANet(nn.Module):
def __init__(self, in_planes):
super(SANet, self).__init__()
self.f = nn.Conv2d(in_planes, in_planes, (1, 1))
self.g = nn.Conv2d(in_planes, in_planes, (1, 1))
self.h = nn.Conv2d(in_planes, in_planes, (1, 1))
self.sm = nn.Softmax(dim = -1)
self.out_conv = nn.Conv2d(in_planes, in_planes, (1, 1))
def forward(self, content, style):
F = self.f(mean_variance_norm(content))
G = self.g(mean_variance_norm(style))
H = self.h(style)
b, c, h, w = F.size()
F = F.view(b, -1, w * h).permute(0, 2, 1)
b, c, h, w = G.size()
G = G.view(b, -1, w * h)
S = torch.bmm(F, G)
S = self.sm(S)
b, c, h, w = H.size()
H = H.view(b, -1, w * h)
O = torch.bmm(H, S.permute(0, 2, 1))
b, c, h, w = content.size()
O = O.view(b, c, h, w)
O = self.out_conv(O)
O += content
return O
class Transform(nn.Module):
def __init__(self, in_planes):
super(Transform, self).__init__()
self.sanet4_1 = SANet(in_planes = in_planes)
self.sanet5_1 = SANet(in_planes = in_planes)
self.upsample5_1 = nn.Upsample(scale_factor=2, mode='nearest')
self.merge_conv_pad = nn.ReflectionPad2d((1, 1, 1, 1))
self.merge_conv = nn.Conv2d(in_planes, in_planes, (3, 3))
def forward(self, content4_1, style4_1, content5_1, style5_1):
return self.merge_conv(self.merge_conv_pad(self.sanet4_1(content4_1, style4_1) + self.upsample5_1(self.sanet5_1(content5_1, style5_1))))
def test_transform():
transform_list = []
transform_list.append(transforms.ToTensor())
transform = transforms.Compose(transform_list)
return transform
parser = argparse.ArgumentParser()
# Basic options
parser.add_argument('--content', type=str, default='input/22972.jpg',
help='File path to the content image')
parser.add_argument('--style', type=str, default='style/113.png',
help='File path to the style image, or multiple style \
images separated by commas if you want to do style \
interpolation or spatial control')
parser.add_argument('--steps', type=str, default=1)
parser.add_argument('--vgg', type=str, default='vgg_normalised.pth')
parser.add_argument('--decoder', type=str, default='decoder_iter_500000.pth')
parser.add_argument('--transform', type=str, default='transformer_iter_500000.pth')
# Additional options
parser.add_argument('--save_ext', default='.jpg',
help='The extension name of the output image')
parser.add_argument('--output', type=str, default = 'output',
help='Directory to save the output image(s)')
# Advanced options
args = parser.parse_args('')
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
if not os.path.exists(args.output):
os.mkdir(args.output)
decoder = decoder
transform = Transform(in_planes = 512)
vgg = vgg
decoder.eval()
transform.eval()
vgg.eval()
decoder.load_state_dict(torch.load(args.decoder))
transform.load_state_dict(torch.load(args.transform))
vgg.load_state_dict(torch.load(args.vgg))
norm = nn.Sequential(*list(vgg.children())[:1])
enc_1 = nn.Sequential(*list(vgg.children())[:4]) # input -> relu1_1
enc_2 = nn.Sequential(*list(vgg.children())[4:11]) # relu1_1 -> relu2_1
enc_3 = nn.Sequential(*list(vgg.children())[11:18]) # relu2_1 -> relu3_1
enc_4 = nn.Sequential(*list(vgg.children())[18:31]) # relu3_1 -> relu4_1
enc_5 = nn.Sequential(*list(vgg.children())[31:44]) # relu4_1 -> relu5_1
norm.to(device)
enc_1.to(device)
enc_2.to(device)
enc_3.to(device)
enc_4.to(device)
enc_5.to(device)
transform.to(device)
decoder.to(device)
content_tf = test_transform()
style_tf = test_transform()
content = content_tf(Image.open(args.content))
style = style_tf(Image.open(args.style))
style = style.to(device).unsqueeze(0)
content = content.to(device).unsqueeze(0)
with torch.no_grad():
for x in range(args.steps):
print('iteration ' + str(x))
Content4_1 = enc_4(enc_3(enc_2(enc_1(content))))
Content5_1 = enc_5(Content4_1)
Style4_1 = enc_4(enc_3(enc_2(enc_1(style))))
Style5_1 = enc_5(Style4_1)
content = decoder(transform(Content4_1, Style4_1, Content5_1, Style5_1))
content.clamp(0, 255)
content = content.cpu()
output_name = '{:s}/{:s}_stylized_{:s}{:s}'.format(
args.output, splitext(basename(args.content))[0],
splitext(basename(args.style))[0], args.save_ext
)
save_image(content, output_name)