Figure 4From: Rigid Registration of Renal Perfusion Images Using a Neurobiology-Based Visual Saliency ModelPlots showing variation of different similarity measures when registering pre- and postcontrast images: (a) NMI; (b) QMI1; (c) QMI2. The plots show results for Ty (translation along y-axis). x-axis of the plots shows relative error between actual and candidate transformations while y-axis shows value of similarity measure.Back to article page