(1) Technique of using a camera, scanner or computer to divide continuous-tone color images into four halftone negatives. (2) The product resulting from color separating and subsequent four-color process printing. Also called separation.<br><br>A photomechanical graphic process used by commercial artists which separates the primary colors in a color picture. A printing plate is then made for each of the colors ? one for yellow, one for blue (cyan), one for red (magenta), and also one for black. When these colors are printed one on top of the other, the full color original picture is reproduced.