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Image noise is difficult to avoid during the image acquisition and communication, and thus we need to suppress noise in the low level vision. Among all of the existing image denoising methods, image priors, such as hyper-Laplacian priors of the heavy-tailed distribution of image gradient, play an important role. However, many denoising methods tend to smooth the fine textures while suppressing noise,...
With the increasing of tongue image data, exploratory data analysis would provide an effective means to obtain knowledge and to verify the correctness of several traditional tongue diagnosis findings. This paper proposes an exploratory tongue color analysis method by using the manifold learning technique. We further present an evaluation criterion to determine the optimal parameters. With the help...
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