Why are green screens green?
In: Technology
Originally, in film days, it was blue screens that were used. This is because it was often the background like that sky that was being replaced. In film, they literally used the blue part of the film strip and replaced it with whatever they wanted to. Oh, and this required cutting things out *by hand*.
In digital, we can use whatever. You just need the colour to be nice and constant, and to be unique in the shot. Having it constant makes sure the computer can spot it all. Having it unique means the computer doesn’t start replacing things it shouldn’t. Green is a good colour to use because humans are very not green.
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