Update app.py

app.py

@@ -118,7 +118,7 @@ def predict(img):
     # Step 1: Use an AI service to preprocess the image.
     #   - OpenCV can detect edges, but results are inconsistent depending on noise/lighting.
     #   - The AI model generates a cleaner, well-bounded intermediate image.
-    crop, mask = client.predict(image=handle_file(img), session="U2NET", api_name="/predict")
+    crop, mask = client.predict(image=handle_file(img), session="u2net", api_name="/predict")
 
     # Step 2: Apply OpenCV on this intermediate image for more accurate border detection
     #         before performing the perspective unwrap.