despill

Remove unwanted contamination of foreground colors, caused by reflected color of greenscreen or bluescreen.

This filter accepts the following options:

type: Set what type of despill to use.
mix: Set how spillmap will be generated.
expand: Set how much to get rid of still remaining spill.
red: Controls amount of red in spill area.
green: Controls amount of green in spill area. Should be -1 for greenscreen.
blue: Controls amount of blue in spill area. Should be -1 for bluescreen.
brightness: Controls brightness of spill area, preserving colors.
alpha: Modify alpha from generated spillmap.