Color diffusion: error diffusion for color halftones

Doron Shaked, Nur Arad, Andrew E. Fitzhugh, Irwin E. Sobel, Giordano B. Beretta, Reiner Eschbach
1998 Color Imaging: Device-Independent Color, Color Hardcopy, and Graphic Arts IV  
color halftoning, error diffusion, minimal brightness variation criterion Error Diffusion is a high-performance halftoning method in which quanitization errors are diffused to "future" pixels. Originally intended for grayscale images, it is traditionally extended to color images by Error-Diffusing each of the three color planes independently (separable Error Diffusion). In this report we show that adding to the Error Diffusion paradigm a simple design rule which is based on certain
more » ... cs of human color perception results in a novel color halftoning algorithm, whose output is of considerable higher quality compared to separable Error Diffusion. The algorithm presented requires no additional memory and entails a reasonable increase in run-time.
doi:10.1117/12.334589 dblp:conf/clrimg/ShakedAFS99 fatcat:jka2krdvy5d6feix2nrhz4wknu