Update app.py

app.py

@@ -159,7 +159,7 @@ def swap_face(source_file, target_file, doFaceEnhancer):
         metadata = dataset_handler.save_metadata(
             f"source_{timestamp}.jpg",
             f"target_{timestamp}.jpg",
-            f"Image{timestamp}.jpg",
+            f"OutputImage{timestamp}.jpg",
             timestamp
         )