Update app.py

app.py

@@ -11,6 +11,6 @@ if img is not None:
     results = model(img)
     st.image(img,'Input')
     for result in results:
-        for j, mask in result.masks.data:
+        for mask in result.masks.data:
             mask = mask.numpy()* 255
             st.image(mask,'Mask')