Chroma Key creates the popular keying effect used by television weather reporters when they stand in front of a weather map on a news set. Chroma Key tools are commonly used in Hollywood feature films to create alien worlds and impossible situations.
The Chroma Key effect allows you to record live action video in front of a colored background. Blue and green are the most commonly used background colors.
Chroma Key replaces the colored background with alternate video footage. Chroma Key has the ability to key out any color you choose. This opens a whole world of opportunity to create endless special effects.