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Fig. 3. Pairs "map MP–noisy image IM" simulated for the given parameters: (a) ({lambda}1,{lambda}2) = (0.35, 0.40); (b) ({lambda}1,{lambda}2) = (0.17, 0.40); (c) ({lambda}1,{lambda}2) = (0.35, 1.20); (d) ({lambda}1,{lambda}2) = (0.17, 1.20) at the different iterations (It): (a), (b) It = 30; (c), (d) It = 25.