G - Physics – 09 – G
Patent
G - Physics
09
G
375/18, 354/236.
G09G 3/00 (2006.01) G06K 15/00 (2006.01) G09G 5/02 (2006.01)
Patent
CA 1236940
ABSTRACT A color to monochromatic image transformation which transforms each color area of the original image into a corresponding area of a monochromatic image having a particular pattern of 'light' and 'dark' dots corresponding to and representing the original color of the area. The dot patterns are selected to provide both gray scale representations of the original colors and differing textural appearances for each color, so as to maximize the discrimination, or distinction, between the areas of the monochromatic image. That is, the transformation of the present invention provides an approximation to gray scale representation, in the overall gray scale appearance of the dot patterns, but adds an additional dimension of texture. The monochromatic dot patterns do not necessarily correspond exactly to the colors or gray scale values of the original colors, but are selected to provide visual impressions analogous to the visual impressions provided by the corresponding original colors. A further feature of the dot arrays selected to represent various colors is that the patterns of dots are selected for each array so as to avoid the creation of artifacts, that is, the formation of accidental or incidental patterns and figures within a given array or at the junction or border between two arrays.
467021
Smart & Biggar
Wang Laboratories Inc.
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