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nrron t1_iu5ni4n wrote

Shooting with a green screen involves filming a person or adding visual effects in front of a solid color. That color doesn’t have to be green there are blue screens as well. Then, by digitally removing or “keying out” that color, you can drop that scene onto the background of your choice in post-production. Removing the colored background is also referred to as “chroma keying.”

Green is usually used because it’s one of the furthest colors from skin tone.

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The_RealKeyserSoze t1_iu5pmu4 wrote

Green is also used because most digital cameras have more green pixels than blue or red pixels. Blue is also far away from skin color and blue screens were used back in the film days.

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