Update app.py

app.py

@@ -414,9 +414,10 @@ class ForgeryDetector:
 
             region_mask = region_mask.astype(bool)
             
-            # Extract features
+            # Extract features using ORIGINAL image (not preprocessed)
+            # This matches how the classifier was trained
             features = self.feature_extractor.extract(
-                preprocessed,
+                original_image / 255.0,  # Normalize to [0, 1]
                 region['region_mask'],
                 [f.cpu() for f in decoder_features]
             )