photomechanical graphic

   Photographic (and analog) processes used in preparing to print images with the printing plates. Color separation is one of the functions of photomechanical processes — making a separate printing plate for each of the color components in a color picture. Usually there are four: one plate for yellow, one for blue (cyan), one for red (magenta), and one for black. Images printed by offset lithography — the printing process by which the majority of periodicals are printed for example — have invariably been photomechanical graphics until computer graphic processes have gotten to take over some of this territory. A computer generated image is more likely to be called a computer graphic or digital graphic. Also see moiré.

Glossary of Art Terms. 2014.

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