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Comparison and Improvement of Several Smoothing Algorithms Based on Anisotropic Diffusion


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Comparison and Improvement of Several Smoothing Algorithms Based on Anisotropic Diffusion
QIAN Hui-minMAO Yao-binWANG Zhi-quan
School of Automation,NUST,Nanjing 210094,China
anisotropic d iffusion v isua lm asking effect image smooth ing
The performances of several improved Perona-M alik anisotrop ic diffusion methods are compared, and an improvedm ethod mak ing use o f v isual masking effect is proposed. Ow ing to the usage of themeasurement capab ility for image features o f un itary local variance and image grad ien,t the new a lgorithm ach ieves better effect in terms o f no ise remova l and edge preservation and obv iates the parameter estimat ion diff icult ies that unavo idably ex ist in o ld schemes. The experimental resu lts demonstrate the better smooth ing images from the a lgorithm w ith respect to v isual quality aga inst the many ex isting improved an iso trop ic diffusionme thods.


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Last Update: 2007-10-30