HeyGen shows video background removal with transparent foreground, mask and plate
HeyGen · x · 2026-07-25
HeyGen’s Day 19 walkthrough explains background removal for video and how it turns a talking-head clip into three editable layers: foreground, mask, and background.
- Existing footage can be split into a transparent subject, a grayscale alpha matte, and the scene plate.
- Generated avatar videos can ship with alpha baked in from the start.
- The same capability also runs locally, outputting transparent WebM, ProRes 4444, or PNG, plus the inverse background plate.
- The workflow unlocks compositing tricks like placing captions behind a shoulder or moving the same take into different scenes.
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