What is kromakey?

Answer 1

Chroma key, often referred to as "kromakey," is a visual effects technique used in film and video production to replace a specific color in a scene with a different background or image. Typically, a bright green or blue backdrop is used because these colors are not commonly found in human skin tones, making it easier to isolate and remove them in post-production. This technique allows filmmakers to create dynamic environments and effects by combining live-action footage with digitally created backgrounds.