Figure 8: (a) The unregistered images, (b) affine registered images, (c) registration with deformation, (d) constant , where the left image is , 2nd column image is , the 3rd column image is the concentration map resulting from those and images, and the right image is the difference between concentration maps for (a), (b), or (c) with (d). White represents regions in which or for which concentration calculate is out of the range of the color bar (0 mM-1 mM).