The technique is also known as chroma key compositing, and it’s generally used to merge two images or videos together based on color hues. Usually you see an actor filmed in front of a green ...

Green screens, or chroma key, to give the effect its real name, relies on the background using a colour not present in the main subject of the shot. This can then be detected electronically or in ...

Compositing makes use of many other types of techniques that you may be familiar with (at least in the name), like green screens, blue screens, and chroma keying. If you watch any film or ...