Update 256_model.py

256_model.py

@@ -0,0 +1,26 @@
+class UNet(nn.Module):
+    def __init__(self):
+        super(UNet, self).__init__()
+        # Encoder
+        self.encoder = nn.Sequential(
+            nn.Conv2d(3, 64, kernel_size=4, stride=2, padding=1),
+            nn.ReLU(inplace=True),
+            nn.Conv2d(64, 128, kernel_size=4, stride=2, padding=1),
+            nn.ReLU(inplace=True),
+            nn.Conv2d(128, 256, kernel_size=4, stride=2, padding=1),
+            nn.ReLU(inplace=True),
+        )
+        # Decoder
+        self.decoder = nn.Sequential(
+            nn.ConvTranspose2d(256, 128, kernel_size=4, stride=2, padding=1),
+            nn.ReLU(inplace=True),
+            nn.ConvTranspose2d(128, 64, kernel_size=4, stride=2, padding=1),
+            nn.ReLU(inplace=True),
+            nn.ConvTranspose2d(64, 3, kernel_size=4, stride=2, padding=1),
+            nn.Tanh()
+        )
+
+    def forward(self, x):
+        enc = self.encoder(x)
+        dec = self.decoder(enc)
+        return dec