-purpose "Compute the gamma index map for target dose map vs reference dose map. If verbose is given, the ratio of gamma>1 pixels of the total pixel in the image is computed. Absolute dose margin has priority over relative dose margin. The relative dose margin is relative to the maximum dose in the reference image. Reference and target images must share the same origin, the same spacing and the same size."
+version "1.1"
+purpose "Compute the gamma index map for target dose map vs reference dose map. If verbose is given, the ratio of gamma>1 pixels of the total pixel in the image is computed. Absolute dose margin has priority over relative dose margin. The relative dose margin is relative to the maximum dose in the reference image.\n\nclitkGammaIndex -v -i ref.mhd -j disp.mhd -o gamma.mhd -s 3 -r 0.04\nthis will compute the 3mm 4% gamma index between ref and disp."