Chroma keying

Chroma keying is a visual effects technique used to replace a specific color in a video or image with another background. Typically, a bright green or blue backdrop is used because these colors are less likely to match human skin tones. During editing, software identifies this color and removes it, allowing different images or videos to be inserted seamlessly in its place. This method is widely used in movies, television, and video production to create engaging and dynamic visuals, enabling filmmakers to place actors in various environments without needing to be physically present there.