Update app.py

app.py

@@ -819,13 +819,13 @@ def main(file: IO[bytes], half: bool, weight: str, tile: str):
         scale, weight_path=str(AVALIABLE_WEIGHTS[weight]), half=half, device=DEVICE
     )
 
-    frame = cv2.imread(file.name)
-    result = upscaler(frame[:, :, [2, 1, 0]], TileMode[tile])
+    frame = cv2.cvtColor(cv2.imread(file.name), cv2.COLOR_BGR2RGB)
+    result = cv2.cvtColor(upscaler(frame, TileMode[tile]), cv2.COLOR_RGB2BGR)
 
     _, ext = os.path.splitext(file.name)
     tempfile = mktemp(suffix=ext)
     cv2.imwrite(tempfile, result)
-    return result, tempfile
+    return tempfile, tempfile
 
 
 interface = Interface(