A color-communication scheme for digital imagery

Pecora XI Symposium


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Color pictures generated from digital images are frequently used by geologists, foresters, range managers, and others. These color products are preferred over black and white pictures because the human eye is more sensitive to color differences than to various shades of gray. Color discrimination is a function of perception, and therefore colors in these color composites are generally described subjectively, which can lead to ambiguous color communication. Numerous color-coordinate systems are available that quantitively relate digital triplets representing amounts of red, free, and blue to the parameters of hue, saturation, and intensity perceived by the eye. Most of these systems implement a complex transformation of the primary colors to a color space that is hard to visualize, thus making it difficult to relate digital triplets to perception parameters. This paper presents a color-communcation scheme that relates colors on a color triangle to corresponding values of "hue" (H), "saturation" (S), and chromaticity coordinates (x,y,z). The scheme simplifies the relation between red, green, and blue (RGB) digital triplets and the color generated by these triplets. Some examples of the use of the color-communication scheme in digital image processing are presented.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title A color-communication scheme for digital imagery
Series title Pecora XI Symposium
Year Published 1987
Language English
Publisher American Society of Photogrammetry
Publisher location Falls Church, VA
Description 20 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Pecora XI Symposium
First page 253
Last page 272