Open AccessJournal Article
Improved Non-local Means Algorithm for Image Denoising
TLDR
Experimental results show the algorithm has a superior denoising performance than the original one, especially with detail information in the image, and PSNR can be improved by 1.6 dB at most.Abstract:
Aiming at the problem of the over-smoothness and blurs the details,which are caused by exponential kernel function used in original non-local means algorithm,this paper proposes a cosine Gaussian kernel function based on exponential kernel function and combined with a cosine coefficient and Gaussian kernelIt is used in the weight-computing of the improved algorithmExperimental results show the algorithm has a superior denoising performance than the original one,especially with detail information in the image,and PSNR can be improved by 16 dB at mostread more
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Shannon-Cosine Wavelet Precise Integration Method for Locust Slice Image Mixed Denoising
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