Fig. 7
From: A robust anisotropic diffusion filter with low arithmetic complexity for images
Performance of FORADF (λ = 1, n = 10) with and without preprocessing strategy. Without preprocessing strategy: a without noise, b - d 5%, 20%, and 50% salt and pepper noise respectively. With preprocessing strategy: e without noise, f - h 5%, 20%, and 50% salt and pepper noise respectively. λ represents the control parameter, and n represents the number of iterations