fit_spline_dfield - Deformation Field to Transformation

       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.

CMTK 3.3.1p2                                       Feb 26 2025                              fit_spline_dfield(1)

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

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

       Fit a parametric nonrigid transformation (B-spline free-form deformation) to a deformation field

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

       fit_spline_dfield - Deformation Field to Transformation

GlobalToolkitOptions(thesearesharedbyallCMTKtools)--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).

   InputOptions--absolute
            Input is an absolute transformation field [x maps to input(x)] [Thisisthedefault]--relative
            Input is relative deformation field, e.g., a gradient or force field [x maps to x+input(x)]

   FittingOptions--levels<integer>
            Number of levels in the multi-level B-spline approximation procedure.  [Default:1]--fit-affine-first
            Fit affine transformation first, then initialize spline with it.

   OutputOptions--final-cp-spacing<double>
            Final control point grid spacing of the output B-spline transformation.  [Default:0]--final-cp-dims<string>
            Final  control  point  grid  dimensions  (i.e.,  number  of  controlpoints)  of  the output B-spline
            transformation. To be provided as 'dimX,dimY,dimZ'.  [Default:NONE]

fit_spline_dfield InputDField OutputXform