green screen

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In film and television, a uniformly-lit plain background that is used to create a travelling matte for special-effects shots using a process called colour separation overlay. Green and blue are the preferred colours because they are not found in human skin or hair tones (see alsochroma key). The live action component of films such as Avatar (2009) and 300 (2006) are almost entirely photographed with actors performing in front of green screens.

Subjects: Media Studies.

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