Fix predict script (mistake from last commit)

Former-commit-id: 9fd386f5929945f3df1868930d392507fee16a55

predict.py

@@ -6,6 +6,7 @@ import numpy as np
 import torch
 from PIL import Image
 from torchvision import transforms
+import torch.nn.functional as F
 
 from unet import UNet
 from utils import plot_img_and_mask
@@ -20,7 +21,6 @@ def predict_img(net,
                 use_dense_crf=False):
     net.eval()
     img_height = full_img.size[1]
-    img_width = full_img.size[0]
 
     img = resize_and_crop(full_img, scale=scale_factor)
     img = normalize(img)
@@ -32,7 +32,13 @@ def predict_img(net,
 
     with torch.no_grad():
         output = net(X)
-        probs = output.squeeze(0)
+
+        if net.n_classes > 1:
+            probs = F.softmax(output, dim=1)
+        else:
+            probs = torch.sigmoid(output)
+
+        probs = probs.squeeze(0)
 
         tf = transforms.Compose(
             [

unet/unet_model.py

@@ -35,8 +35,3 @@ class UNet(nn.Module):
         x = self.up4(x, x1)
         logits = self.outc(x)
         return logits
-
-        if self.n_classes > 1:
-            return F.softmax(x, dim=1)
-        else:
-            return torch.sigmoid(x)