earticle

영어

In this paper, we propose a new dithering method which uses random weight assignment. We use 3-by-3 window for dithering process and four coefficient values are randomly determined, where right, left-down, down, and right-down weights are determined accordingly. The sum of all weights is one. Block diagram and the pseudo code are provided. Experiments were conducted on two natural and two artificial images. Simulation results show that the proposed approach gives the best visual quality among all result images.