Patch Similarity Modulus and Difference Curvature Based Fourth-Order Partial Differential Equation for Image Denoising

Figure 7

Comparison of the denoising results from various methods: (a) original Lena image, (b) noisy Lena image with the noise standard deviation of 10, (c) PM model (70 steps), (d) YK model (180 steps), (e) SGH model (200 steps), (f) AFOD filter (300 steps), and (g) proposed algorithm (330 steps).

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