YANG Xuefeng, LI Jinzong, LI Dongdong, ZHU Bing. A Forward and Backward Diffusion Based on Image Denoising and Enhancement Method[J]. Geomatics and Information Science of Wuhan University, 2010, 35(8): 975-978.
Citation:
YANG Xuefeng, LI Jinzong, LI Dongdong, ZHU Bing. A Forward and Backward Diffusion Based on Image Denoising and Enhancement Method[J]. Geomatics and Information Science of Wuhan University, 2010, 35(8): 975-978.
YANG Xuefeng, LI Jinzong, LI Dongdong, ZHU Bing. A Forward and Backward Diffusion Based on Image Denoising and Enhancement Method[J]. Geomatics and Information Science of Wuhan University, 2010, 35(8): 975-978.
Citation:
YANG Xuefeng, LI Jinzong, LI Dongdong, ZHU Bing. A Forward and Backward Diffusion Based on Image Denoising and Enhancement Method[J]. Geomatics and Information Science of Wuhan University, 2010, 35(8): 975-978.
A novel forward and backward diffusion based image denoising and enhancement method is proposed.In the proposed method,the direct gradient computation is replaced by a nonlinear structure tensor(NLST) to increase the robustness to noise;The shock filter item along the gradient direction is replaced by a forward or backward diffusion according with the adaptive threshold value of gradient;The corner structure is also enhanced by performing a backward diffusion in corner region.Two experimental results show that the proposed algorithm not only removes noise,but also efficiently enhances image texture details and no artifacts are produced.
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