Sometimes it takes a lot of time and resources to demonstrate something, and sometimes only a few props are enough. Physicsfun shared a short video which demonstrates exactly how CMYK works using only four acrylic coasters and a famous painting.
https://www.instagram.com/p/BPNiwZcl7d2/?taken-by=physicsfun
Phsysicsfun’s video shows CMYK process using four acrylic slides in different tints. When they are assembled, they reveal famous Vermeer’s painting “Girl with a Pearl Earring”.
Cyan, magenta, yellow, and black (key) are the elements of the subtractive color model used in most color printing. It works by partially or entirely masking colors on a white background, and the ink reduces the light that would otherwise be reflected. Thus, CMYK model is called subtractive because inks “subtract” brightness from white.
[via Retouchist]
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