four-color proc ... | engleski leksikon

1. four-color process


Color printing using four printing plates, based on the principle that any color is made up of differing proportions of the primary colors blue, red, and green. The first stage in preparing a color picture for printing is to produce separate films, one each for the blue, red, and green respectively in the picture (color separations). From these separations three printing plates are made, with a fourth plate for black (for shading or outlines). Ink colors complementary to those represented on the plates are used for printing—yellow for the blue plate, cyan for the red, and magenta for the green.

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