gmm(1) The Computational Morphometry Toolkit gmm(1)
NAME
gmm - Gaussian mixture model segmentation
SYNOPSIS
gmm InputImage OutputImage PriorImages
DESCRIPTION
Segment an image into c classes using the EM algorithm for Gaussian mixtures with optional priors.
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.
--xml
Write command line syntax specification in XML markup (for Slicer integration).
--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).
General Classification Parameters
--mask <string>, -m <string>
Path to foreground mask image. If this is not provided, the input image is used as its own mask, but this does not work properly if
the input image itself has pixels with zero or negative values. [Default: NONE]
--classes <integer>, -c <integer>
Number of classes. [Default: 3]
--iterations <integer>, -n <integer>
Number of EM iterations. [Default: 10]
Handling of Priors
--priors-init-only
Use priors for initialization only.
--prior-epsilon <double>, -e <double>
Small value to add to all class priors to eliminate zero priors. [Default: 0]
Output Parameters
--probability-maps, -p
Write probability maps. The file names for these maps will be generated from the output image path by inserting '_prob#' before the
file format suffix, where '#' is the index of the respective class, numbered starting at 1 (zero is background).
AUTHORS
Torsten Rohlfing, with contributions from Michael P. Hasak, Greg Jefferis, Calvin R. Maurer, and Daniel B. Russakoff
LICENSE
http://www.fsf.org/licensing/licenses/gpl.html
BUGS
Report bugs at http://nitrc.org/projects/cmtk/
ACKNOWLEDGMENTS
From April 2009 through September 2011, CMTK Development and Maintenance was supported by the National Institute of Biomedical Imaging and
Bioengineering under Grant No.R01 EB008381 (PI: Torsten Rohlfing).
CMTK 2.2.2 Jul 20 2012 gmm(1)