Salt and Pepper Noise Removal with Noise Detection and a Patch-Based Sparse Representation

Figure 4

Reconstructed Barbara images from 50% salt and pepper impulse noise. (a) Noise-free image, (b) noisy image, and (c)–(i) reconstructed images using AMF, TV, Wavelet, PANO, TV-ND, Wavelet-ND, and PANO-ND, respectively.

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