Update app.py

app.py

@@ -70,6 +70,8 @@ def video_frame_callback(frame: av.VideoFrame) -> av.VideoFrame:
     global indexImg, output_text
 
     img = frame.to_ndarray(format="bgr24")
+    # Mirror the image horizontally
+    img = cv2.flip(img, 1)  # Flip code 1 means horizontal flip
     result = hands.process(cv2.cvtColor(img, cv2.COLOR_BGR2RGB))
 
     # Create the keyboard buttons