NAME

       xform2dfield - Transformation to Deformation Field

SYNOPSIS

       xform2dfield OutputPath ReferenceImage XformList

DESCRIPTION

       Convert parametric rigid or nonrigid transformation to deformation field, sampled at pixel
       locations of a given reference image

OPTIONS

   Global Toolkit Options (these are shared by all CMTK tools)
       --help
            Write list of basic command line options to standard output.

       --help-all
            Write complete list of basic and advanced command line options to standard output.

       --wiki
            Write list of command line options to standard output in MediaWiki markup.

       --man
            Write man page source in 'nroff' markup to standard output.

       --version
            Write toolkit version to standard output.

       --echo
            Write the current command line to standard output.

       --verbose-level <integer>
            Set verbosity level.

       --verbose, -v
            Increment verbosity level by 1 (deprecated; supported for backward compatibility).

       --threads <integer>
            Set maximum number of parallel threads (for POSIX threads and OpenMP).

   Main Options
       --mask, -m
            Use reference image pixels as a binary mask.

       --target-image-fsl <string>
            Path to optional target image to  be  used  in  FSL.  This  is  the  image  that  the
            transformation  (and  thus  the  created  deformation field) maps to. When creating a
            deformation field to be used with FSL's "applywarp" tool,  is  may  be  necessary  to
            determine  whether  the  x  coordinate of the resulting deformation vectors has to be
            flipped.  [Default: disabled]

       --inversion-tolerance-factor <double>
            Factor for numerical tolerance of B-spline inversion [multiples of minimum grid pixel
            size; default=0.1] [Default: 0.1]

       --downsample <string>
            Downsample grid by factors 'x,y,z' or by single factor 'xyz' [Default: NONE]

       --output-absolute
            Make  output  deformation  field  with  absolute target location vectors, rather than
            relative offset vectors.

AUTHORS

       Torsten Rohlfing, with contributions from Michael  P.  Hasak,  Greg  Jefferis,  Calvin  R.
       Maurer, Daniel B. Russakoff, and Yaroslav Halchenko

LICENSE

       http://www.fsf.org/licensing/licenses/gpl.html

BUGS

       Report bugs at http://nitrc.org/projects/cmtk/

ACKNOWLEDGMENTS

       CMTK is developed with support from the NIAAA under Grant AA021697, National Consortium on
       Alcohol and Neurodevelopment in Adolescence (N-CANDA): Data  Integration  Component.  From
       April  2009  through September 2011, CMTK development and maintenance was supported by the
       NIBIB under Grant EB008381.