Update app.py

app.py

@@ -189,7 +189,7 @@ def inference_and_return_video(dilation_iterations, num_inference_steps, video_s
     images = np.array(images)
     masks = np.array(masks)
     img_tensor, mask_tensor = preprocess_for_removal(images, masks)
-    mask_tensor = mask_tensor[:,:,:,:1]
+    mask_tensor = mask_tensor[:,:,:]###
 
     if mask_tensor.shape[1] < mask_tensor.shape[2]:
         height = 480