Figure 7From: A conjugate gradient algorithm and its application in large-scale optimization problems and image restorationRestoration of the images Lena, Cameraman, Barbara, Banoon, and Man by PRP algorithm and Algorithm 3.1. From left to right: the noisy image with 20% salt-and-pepper noise, the restorations obtained by minimizing z with PRP algorithm and Algorithm 3.1, respectivelyBack to article page