HSL Secondary Keying for Rescue

color correction technique used to salvage poorly shot footage, particularly problematic green screens or color spills. It involves using the Hue, Saturation, and Luminance (HSL) parameters to isolate a specific, problematic color range and manipulate it without affecting the rest of the image. This is a targeted, surgical approach distinct from a primary key, used when a global fix is impossible or undesirable.