blue screen

Meaning

Noun

• The filmmaking technique of shooting foreground action against an evenly-lit monochromatic background for the purpose of removing the background from the scene and replacing it with a different image or scene.
• The visual effect resulting from this technique as well as the colored screen itself, especially blue.

Related

Similar words

• chromakey, chroma-key, chroma key, greenscreen, green screen
• blue screen of death, BSOD

Origin

• A compound of blue + screen, from the historical film-making technique of using blue backgrounds.