Smooth Out Shaky Video Footage Stabilize shaky video footage to reduce camera shake.

This browser-based stabilizer uses a crop-and-smooth approach. The video is slightly zoomed in (cropped by the stabilization margin, e.g., 10-20%) to create room for position adjustment. A smoothing algorithm analyzes the average pixel position changes between frames to estimate motion. The canvas render position is then offset by the inverse of the detected motion, smoothed over several frames using exponential moving average. This counteracts high-frequency shake while preserving intentional camera movements. The technique is simpler than full motion-vector stabilization but effective for common handheld shake. Canvas drawImage source coordinates are adjusted per-frame to apply the stabilization offset.