1. Frame Rate Matters More Than You Think
Low FPS = laggy gesture detection. Keep your camera feed at 30 FPS or higher for smoother tracking. MediaPipe processes each frame individually, so your webcam speed directly affects performance.
2. Landmark Indexing Is Your Best Friend
Memorize (or keep a reference) of MediaPipe’s 21 landmark indexes for each finger joint. This avoids constant “trial and error” when writing gesture logic.
3. Lighting Changes Everything
Poor lighting causes jitter or false detections. Bright, even lighting improves accuracy dramatically — your camera loves it, and so does MediaPipe.
4. Use min_detection_confidence Wisely
A higher value (like 0.7) reduces false positives, but might miss quick gestures. Lower it for fast-paced interactions, raise it for stable environments. Balance is key.
5. Normalize Coordinates Early
MediaPipe outputs relative coordinates. Normalize them to your screen resolution before applying actions like mouse movement — this prevents weird scaling issues.
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