Optimal color palette for error diffusion techniques

Abstract

Color quantization is an important problem for many applications in graphics and multimedia in which only a limited number of colors can be displayed or printed simultaneously. Reconstruction of an image with a limited number of colors (color palette) leads to highly visible degradations in image quality known as false contours. A way to overcome this problem is to perform dithering techniques. In this paper we propose a color quantization method for the use with color dithering techniques in a way that better results will be obtained after dithering. The results show that our method completely removes false contours as well as prevents color impulses that are common results of applying dithering techniques to color quantized images. © 2013 Springer.