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The CMYK color model (also known as process color, or four color) is a subtractive color model, based on the CMY color model, used in color printing, and is also used to describe the printing process itself. The abbreviation CMYK refers to the four ink plates used: cyan, magenta, yellow, and key (most often black).
Halftone prints (as produced with inkjet and offset printers), traditional film, and digital screens are not truly continuous-tone since they rely on discrete elements (halftones, grains, or pixels) to create an image. [5] However, the term applies when the appearance is so smooth that the breaks or gaps between tonal values are imperceptible. [6]
Voting period ends on 15 Aug 2014 at 04:10:39 (UTC) Original – Three examples of modern color halftoning with CMYK separations. From left to right: The cyan separation, the magenta separation, the yellow separation, the black separation, the combined halftone pattern and finally how the human eye would observe the combined halftone pattern ...
In densitometry, a model quite similar to the hue defined above is used for describing colors of CMYK process inks. In 1953, Frank Preucil developed two geometric arrangements of hue, the "Preucil hue circle" and the "Preucil hue hexagon", analogous to our H and H 2, respectively, but defined relative to idealized cyan, yellow, and magenta ink ...
English: Three examples of color halftoning with CMYK separations. From left to right: The cyan separation, the magenta separation, the yellow separation, the black separation, the combined halftone pattern and finally how the human eye would observe the combined halftone pattern from a sufficient distance.
New version with cyan, magenta and yellow in CMYK color space (previous version uses the RGB cyan, ie with the 00FFFF hex code, magenta and yellow). Uses also the "multiply" blend mode. 19:12, 18 March 2013: 512 × 384 (5 KB) Cmglee: Rotate labels. 20:36, 8 January 2013: 512 × 455 (5 KB) Cmglee
Dot gain, or tonal value increase, is a phenomenon in offset lithography and some other forms of printing which causes printed material to look darker than intended. It is caused by halftone dots growing in area between the original printing film and the final printed result.
Left: Halftone dots. Right: Example of how the human eye would see the dots from a sufficient distance. Halftone is the reprographic technique that simulates continuous-tone imagery through the use of dots, varying either in size or in spacing, thus generating a gradient-like effect. [1] "Halftone" can also be used to refer specifically to the ...