convert_warp(1) Convert nonrigd transformations.


convert_warp InputPath OutputPath


This tool converts nonrigid B-spline free-format deformation coordinate transformations between different representations (e.g., absolute vs. relative vectors). Also creates fractional transformations.


Global Toolkit Options (these are shared by all CMTK tools)

Write list of basic command line options to standard output.
Write complete list of basic and advanced command line options to standard output.
Write list of command line options to standard output in MediaWiki markup.
Write man page source in 'nroff' markup to standard output.
Write toolkit version to standard output.
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

--fractional <float>, -f <float>
Write fractional deformation. Range: 0=affine to 1=full nonrigid; Default: 1 [Default: -1]
--deformation-only, -d
Write only deformation part of transformation (minus global affine component)


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


Report bugs at


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.