关键词: 图像二值化, 误差扩散法, 灰度级

Abstract:

An improved method about the classical algorithm of error diffusion was proposed and applied to the binarization of gray\|level image. The images were divided into two categories according to their grayscale distribution, which were processed respectively under the consideration of the ideology of error diffusion. Experiment results indicate that the binary image having been processed can simulate the continous\|tone gray image, which is coincident with the human visual properties furthermore.

Key words:  image binarization, error diffusion algorithm, grayscale