Color error diffusion method and apparatus therefor

摘要

An apparatus and method of diffusing a color error which includes modulating a threshold value using a binary error of different color channels, to prevent overlapping of dots of a channel, when a sum of input values of the different color channels is not more than a predetermined value, determining a channel whose color is to be output by comparing a corrected input value of each channel in which an error is diffused and binarizing a color channel by comparing the modulation threshold value with the corrected input value of the determined channel.