Brainweb Validation : (a) T1 Atlas, (b) T2 Atlas, (c) PD Atlas, (d) Test T1, (e) true test T2, (f) true test PD, (g) synthetic T2 from test T1, (g) synthetic PD from test T1, (i) Universal Image Quality Index21 between original and synthetic T2/PD, (j) Visual Information Fidelity22 between original and synthetic T2/PD. Normalized Mutual Information (NMI) between (e) and (g) is 0.7464 while NMI between (f ) and (h) is 0.7597.