Update app.py

app.py

@@ -130,7 +130,7 @@ def server(input, output, session: Session):
         
                 out = v.overlay_instances(masks = r["instances"].pred_masks.to("cpu"),
                                           assigned_colors = colours, 
-                                          alpha = opacity)
+                                          alpha = input[id]())
                 ax.imshow(cv2.cvtColor(out.get_image()[:, :, ::-1], cv2.COLOR_BGR2RGB))
         
                 return fig