xfm2def - convert a MNI transform file to a deformation volume xfm2def [options] input.xfm def_vol.mnc xfm2def takes an input transform input.xfm that can consist of a series of concatenated transforms in a single xfm file and converts this into a single deformation volume that is output as def_vol.mnc. Note that the output is not a tranform file itself, you can then make use of this volume in a MINC tranform by creating an .xfm file as such: MNI Transform File Transform_Type = Grid_Transform; Displacement_Volume = def_vol.mnc; The output resolution and sampling of the deformation grid must be specified or a default size will be used. (100x100x100 1mm steps centred around the origin).

-help Print summary of command-line options and exit.

-version Print the program's version number and exit.

-verbose Print out extra progress information while running.

-clobber Overwrite any existing output file

-xnelements nx Number of elements along the xspace dimension.

-ynelements ny Number of elements along the yspace dimension.

-znelements nz Number of elements along the zspace dimension.

-xstep xstep Step between voxels along the xspace dimension.

-ystep ystep Step between voxels along the yspace dimension.

-zstep zstep Step between voxels along the zspace dimension.

-xstart xstart Position of centre of first voxel along the xspace dimension.

-ystart ystart Position of centre of first voxel along the yspace dimension.

-zstart zstart Position of centre of first voxel along the zspace dimension.

-xdircos x1 x2 x3 Direction cosines for the xspace dimension.

-ydircos y1 y2 y3 Direction cosines for the yspace dimension.

-zdircos z1 z2 z3 Direction cosines for the zspace dimension.

Andrew Janke Copyright \(co 2010 Andrew Janke - a.janke@gmail.com