Chroma key
Chroma key is a technique that uses an image taken in front of a green (or blue) screen and changing the background of the picture to a different background the photographer may want. The chroma key is used in filming for movies, television shows and music videos.
Chroma Key Media
Film set for The Spiderwick Chronicles, where a visual effects scene using bluescreen chroma key is in preparation
Demonstration of the creation of visual effects techniques using chroma key
A live broadcast of Myx TV using green-screen chroma key. Note the lack of shadows on the screen. The whiter area near the center of the image is due to the angle this photo was taken from, and would not appear from the video camera's angle.
