Fractional-Order Total Variation Image Restoration Based on Primal-Dual Algorithm

Figure 5

Comparison of four algorithms for the noisy image with additive Gaussian white noise of 𝜎=20.

(a) Barbara with 20 SD Gaussian noise

(b) Partial view of (a)

(c) IP-M algorithm

(d) IF-O PDE algorithm

(e) ROF algorithm

(f) FOTV algorithm