| affine | Create, test for and print affine matrices | 
| applyTransform | Apply a precomputed transformation | 
| as.array.niftyreg | Two and three dimensional image registration | 
| asAffine | Create, test for and print affine matrices | 
| asAffine.affine | Create, test for and print affine matrices | 
| asAffine.default | Create, test for and print affine matrices | 
| asAffine.niftiImage | Create, test for and print affine matrices | 
| asAffine.niftyreg | Create, test for and print affine matrices | 
| asAffine.niftyregRDS | Create, test for and print affine matrices | 
| asNifti.niftyreg | Two and three dimensional image registration | 
| buildAffine | Build an affine matrix up from its constituent transformations | 
| composeTransforms | Compose transformations | 
| decomposeAffine | Decompose an affine matrix into its constituent transformations | 
| deformationField | Calculate the deformation field for a transformation | 
| forward | Extract forward and reverse transformations | 
| forward.niftyreg | Extract forward and reverse transformations | 
| halfTransform | Calculate a half transformation | 
| invertAffine | Invert an affine matrix | 
| isAffine | Create, test for and print affine matrices | 
| isImage | Test whether an object represents an image | 
| jacobian | Extract a Jacobian determinant map | 
| loadTransform | Save and load transform objects | 
| 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 | 
| print.affine | Create, test for and print affine matrices | 
| readAffine | Read an affine matrix from a file | 
| readNifti | Read a NIfTI format file | 
| rescale | Apply simple transformations | 
| reverse | Extract forward and reverse transformations | 
| reverse.niftyreg | Extract forward and reverse transformations | 
| rotate | Apply simple transformations | 
| saveTransform | Save and load transform objects | 
| similarity | Similarity measures between images | 
| skew | Apply simple transformations | 
| translate | Apply simple transformations | 
| writeAffine | Write an affine matrix to a file |