Monday 21 November 2011

How Chroma Key Used

Green and blue background are the two colours used when making affected movies and filming.  Usually these colours are used because they are the only two main colours furthest away from skin tone. The Image above the background would still be the same, while the background changes and becomes the alternative background the person wants.
Green is used mainly because blue can camouflage with someones eye colour. So due to the that green would be more appropriate to use and also green is more sensitive towards the camera implying that the filming which would mean that the green coloring would be mimicking the human eyes increasing the green light, therefore the colour would produce the cleanest key/matte/mask.
however, blue is used before green,

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