Texture preserving denoising method combining total variation and wavelet shrinkage |
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Authors: | Tao Zhang Qibin Fan |
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Affiliation: | ZHANG Tao,FAN Qibin School of Mathematics , Statistics,Wuhan University,Wuhan 430072,Hubei,China |
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Abstract: | In this paper,we propose a new image denoising method that combines total variation(TV) method and wavelet shrinkage. In our method,a noisy image is decomposed into subbands of LL,LH,HL,and HH in wavelet domain. LL subband contains the low frequency coefficients along with less noise,which can be easily eliminated using TV-based method. More edges and other detailed information like textures are contained in the other three subbands,and we propose a shrinkage method based on the local variance to extract th... |
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Keywords: | wavelet total variation texture local variance threshold |
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