Tech Report: HPL-98-47R1: Dithering in a Simplex

Baharav, Zachi ; Shaked, Doron

HP Development Company

关键词: color halftoning;    dithering;   

RP-ID  :  HPL-98-47R1

学科分类：计算机科学（综合）

美国|英语

来源: HP Labs

【 摘 要 】

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