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Proceedings Paper

Algorithmic mapping of colors to textures
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Paper Abstract

When a full-color document is printed on a black-and-white printer (such as when producing black-and-white handouts for a talk that uses colored slides) there can be a substantial loss of information. Usually the colors are mapped to shades of gray according to their luminance. This is fairly effective in the case of pictorial images where most of the useful information is in the luminance channel, but can be less successful for graphical images where hue and saturation may play a more important role. One way to preserve more of the color information is to map colors into visible textures. This paper describes an algorithmic method of performing such a mapping. The technique is an extension of halftoning and produces a binary bitmap for the image. The method accepts and processes any color value, mapping similar colors to similar textures. The texture patterns can be designed so as to preserve the luminance of their corresponding color. Decisions are made locally on a pixel basis, allowing the textured binary image to be incrementally constructed or modified.

Paper Details

Date Published: 9 May 1994
PDF: 8 pages
Proc. SPIE 2171, Color Hard Copy and Graphic Arts III, (9 May 1994); doi: 10.1117/12.175319
Show Author Affiliations
Steven J. Harrington, Xerox Webster Research Ctr. (United States)


Published in SPIE Proceedings Vol. 2171:
Color Hard Copy and Graphic Arts III
Jan Bares, Editor(s)

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