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Figure 2 | Boundary Value Problems

Figure 2

From: A class of singular diffusion equations based on the convex–nonconvex variation model for noise removal

Figure 2

Synthetic image (\(128\times 128\)): (a) noisy image corrupted by Gaussian noise for \(\sigma =50\); (b) original image; (c) our algorithm by PMS, \(\mu _{1}=0.3\), \(\mu _{2}=0.7\), and \(\tau =0.2\); (d) our algorithm by AOS, \(\mu _{1}=0.9\), \(\mu _{2}=0.1\), and \(\tau =2\); (e) TV algorithm, \(\tau =0.2\); and (f) PM algorithm, \(\tau =0.2\) and \(K=8\)

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