Update app.py

app.py

@@ -79,6 +79,8 @@ def video_frame_callback(frame: av.VideoFrame) -> av.VideoFrame:
         incorrect = 0
 
     image = frame.to_ndarray(format="bgr24")
+    # Mirror the image horizontally
+    image = cv2.flip(image, 1)  # Flip code 1 means horizontal flip
     h, w = image.shape[:2]
     image_rgb = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)