convertAffine           Convert an affine matrix between different
                        storage conventions
decomposeAffine         Decompose an affine matrix into its constituent
                        transformations
getDeformationField     Calculate the deformation field for a
                        transformation
invertAffine            Invert an affine matrix
niftyreg                Two and three dimensional image registration
niftyreg.linear         Two and three dimensional linear image
                        registration
niftyreg.nonlinear      Two and three dimensional nonlinear image
                        registration
readAffine              Read an affine matrix from a file
transformVoxelToWorld   Transform points between voxel and "world"
                        coordinates
transformWithAffine     Transform points using an affine matrix
transformWithControlPoints
                        Transform points using a control point image
writeAffine             Write an affine matrix to a file
xformToAffine           Create an affine matrix corresponding to the
                        "xform" of an image
