关键词: 扩散滤波, 视觉梯度, 图像

Abstract: In recent years triggered by the anisotropic diffusion method considerable amount of researchers have been devoted to this and related methods and achieved a series of important development.However，HVS（Human Visual System） which perceives and interpretes images has been paid little attention to in all these models.This paper defines visual gradient which is looked as a generalization of image gradient.After that substitutes the visual gradient for image gradient in the classical anisotropic diffusion model’s diffusion function to keep to some extent consistent with human visual system for the first time.Numerical results show the proposed method’s performance.

Key words: diffusion filter, visual gradient, image