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The CMYK color model is based on the CMY color model, which omits the black ink. Four-color printing uses black ink in addition to subtractive primaries for several reasons: [2] In traditional preparation of color separations, a red keyline on the black line art marked the outline of solid or tint color areas. In some cases a black keyline was ...
The ECI-CMYK color space, sometimes written ECI CMYK or eciCMYK, is a standardized CMYK color space for graphic data exchange in the print industry. It is equivalent to Fogra 53, often spelt FOGRA53, and is intended to overcome limitations of and thereby replace the ISO Coated CMYK exchange color space (version 2 = Fogra 39, version 3 = Fogra 51).
Physical descriptions of color can be additive (describes mixing of light, RGB) or subtractive (describes mixing of pigment or removal of light, CMYK). Descriptions based on human perception are based on some experimental results on humans. Some models and their variants are employed in parts of the color spaces listed below. [1]
A "color model" is an abstract mathematical model describing the way colors can be represented as tuples of numbers (e.g. triples in RGB or quadruples in CMYK); however, a color model with no associated mapping function to an absolute color space is a more or less arbitrary color system with no connection to any globally understood system of ...
Color reproduction is an aspect of color science concerned with producing light spectra that evoke a desired color, either through additive (light emitting) or subtractive (surface color) models. It converts physical correlates of color perception ( CIE 1931 XYZ color space tristimulus values and related quantities) into light spectra that can ...
Within the CMY color space used in color printing, a range of colors can be achieved by combining the three primary colors.This combination can be thought of as a hue component (which will require a maximum of two primary colors) and a grey component (a mixture of all three, in an appropriate quantity to give the required saturation).
CcMmYK, sometimes referred to as CMYKLcLm or CMYKcm, is a six-color printing process used in some inkjet printers optimized for photo printing. [1] It complements the more common four-color CMYK process, which uses only cyan, magenta, yellow and black, by adding light cyan and light magenta.
The coordinates are otherwise hidden (see Category:Color articles with suppressed CMYK data). c Cyanic CMYK color space coordinate m Magenta CMYK color space coordinate y Yellow CMYK color space coordinate k Black CMYK color space coordinate cmykref The reference for CMYK coordinates, if different from the main source. Other parameters bgcolor ...