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An Image Enhancement Method Using Modified Diffusion Function in Anisotropic Diffusion Filter  

Song, Young-Chul (경북대학교 전자전기공학부 신호처리연구실)
Choi, Doo-Hyun (경북대학교 전자전기공학부 지능정보시스템 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.29, no.1C, 2004 , pp. 50-58 More about this Journal
Abstract
An image enhancement method using modified anisotropic diffusion filter is proposed in this paper. It employs sensor noise estimation and scale space methods based on the minimum reliable scale. Then the anisotropic diffusion filter is modified by the calculated critical value function and local gradient. Through simulation, it is verified that the proposed algorithm has the capability of little or no noise amplification in homogenous region as well as superior edge enhancement.
Keywords
image enhancement; anisotropic diffusion filter; critical value function;
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