Research Article

Perona-Malik Model with Diffusion Coefficient Depending on Fractional Gradient via Caputo-Fabrizio Derivative

Figure 5

Threshold parameter and iteration . (a) Tiger original image in the left, noisy image with Gaussian noise with and in the middle, and noisy image with Gaussian noise with and in the right. (b) Processed by the PM scheme. (c) Processed by the proposed scheme for . (d) Processed by the proposed scheme for .
(a)
(b)
(c)
(d)