Update app.py

app.py

@@ -72,7 +72,7 @@ def depth_normal(img):
     pred_color = gray_to_colormap(pred_depth)
 
     pred_normal = pred_normal.squeeze()
-    if pred_normal.size(0) == 3
+    if pred_normal.size(0) == 3:
         pred_normal == pred_normal.permute(1,2,0)
     pred_color_normal = vis_surface_normal(pred_normal)