Chroma key

Removing a background of one colour, usually green or blue, so the subject can be placed over something else. Also called green screen or keying.

In Premation

Keylight is in the Keying folder of the Effects browser, with screen colour, clip black and white, despill, choke and matte softness. The folder holds 20 keying and matte effects.

Read the docs: Effect catalog

Related terms

• Rotoscoping
• Alpha channel
• Track matte