Chroma Key
Removes a green/blue screen background with spill suppression and matte refinement.
Chroma Key removes a specific color from the image and replaces it with transparency. It’s the standard green-screen / blue-screen removal tool. The similarity control sets how far from the key color counts as background, and the blend control creates a smooth transition at the edges.
Spill Suppression removes color bleed from the key color onto the subject. This is essential when green screen light contaminates hair or skin edges.
Parameters
Section titled “Parameters”Keyer
Color to remove — typically green or blue screen
Distance from key color considered background; higher=more aggressive
Transition zone width for smoother subject edges
Reduce color bleed from key onto subject
Mask
Matte values below this clip to fully transparent
Matte values above this clip to fully opaque
Keep key color, remove everything else
Usage Tips
Section titled “Usage Tips”- Use the eyedropper to pick the exact screen color from the footage.
- Start with low similarity and increase gradually until the background is cleanly removed.
- Add spill suppression to remove green/blue fringing on the subject edges.
- Use Clip Black/White to refine the matte: crush shadows and clip highlights for a cleaner key.