Cyan-magenta-yellow-black color

Cyan-magenta-yellow-black, or CMYK (also called four-color) For print publications, where all shades of color are produced by layering screened dots of four standardized inks. 

Spectrometers, colorimeters, cameras, scanners, television monitors and printers base their color modes on established models for describing and reproducing color. Common modes include RGB (red, green, blue) CMYK (cyan, magenta, yellow, black) and CIE L a b (Commission Internationale de I Eclairage) [6]. 

The development of xerography has led to new technologies that some predict will eventually eradicate traditional offset printing machines. These new machines, which print in full CMYK color (printing terminology for cyan, magenta, yellow, and black), such as Xeikon, use xerography but provide nearly the quality of traditional ink prints. 

Color measurement In the case of colored toners, UV and visible (UV-Vis) transmission spectroscopy is successfully applied. If an isolated toner particle of cyan, magenta, yellow, and black is available on a document, the problem of color separation is irrelevant. However, in routine cases, color separation must be practiced under a microscope. The various colored toner particles, composing a colored image, are isolated, embedded in glycerin, and placed on a quartz slide. The UV-Vis spectra are measured using a microspectrophotometer that provides a more objective measure of colors, compared to the subjective evaluation of the naked eye or the use of an optical microscope alone. 

While light is displayed as a combination of red, green, and blue on screens, printing is typically done on a scale that uses cyan, magenta, yellow, and black as base colors. This accounts for some discrepancy between colors that appear on screen and those that show up on paper. 

NOTE If you do not define the color attributes, then by default MATLAB currently cycles through the colors blue, green, red, cyan, magenta, yellow, and black when creating multiple lines with a plot command, as shown in Fig. 1.16b. 

Black dyes are not normally used in D2T2. A black color is obtained by overprinting the yellow, magenta, and cyan dyes to produce a so-called composite black. 

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