Update app.py

app.py

@@ -44,7 +44,7 @@ examples = [["examples/" + img] for img in os.listdir("examples/")]
 iface = gr.Interface(
     fn=process_image,
     inputs=[gr.inputs.Image(type="filepath", label="Input Image")],
-    outputs=[predicted_depth],
+    outputs=[gr.outputs.Image(type="pil", label="Predicted Depth")],
     title=title,
     description=description,
     examples=examples,