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HP Labs Technical Reports
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Dithering in a Simplex
Baharav, Zachi; Shaked, Doron
HPL-98-47R1
Keyword(s): color halftoning; dithering
Abstract: This report introduces the problem of dithering in a simplex, and suggests a few possible solutions. In general, dithering can be viewed as a method for describing color images using a combination of allowed output colors. Usually the convex hull of the set of allowed output colors is a cube in the color space. However, there are cases when the convex hull is a simplex, which leads to the problem at hand. All the simplex dithering methods suggested in this report are based on a geometrical interpretation of the dithering process, which is described and used throughout this report. Different features of the various dithering methods are discussed, and a few examples are given.
32 Pages
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