.TH fit_affine_xform "1" "Jun  6 2022" "CMTK 3.3.1p2" "The Computational Morphometry Toolkit"
.SH NAME
fit_affine_xform \- Fit Single Affine Transformation to Concatenated List
.SH SYNOPSIS
\fBfit_affine_xform\fR InputImage XformList 
.SH DESCRIPTION
Fit a linear affine transformation to a list of concatenated, optionally inverted, transformations.
.SH OPTIONS
.SS Global Toolkit Options (these are shared by all CMTK tools)
.TP 5
\fB\-\-help\fR
Write list of basic command line options to standard output.
.TP 5
\fB\-\-help-all\fR
Write complete list of basic and advanced command line options to standard output.
.TP 5
\fB\-\-wiki\fR
Write list of command line options to standard output in MediaWiki markup.
.TP 5
\fB\-\-man\fR
Write man page source in 'nroff' markup to standard output.
.TP 5
\fB\-\-version\fR
Write toolkit version to standard output.
.TP 5
\fB\-\-echo\fR
Write the current command line to standard output.
.TP 5
\fB\-\-verbose-level\fR \fI<integer>\fR
Set verbosity level.
.TP 5
\fB\-\-verbose\fR, \fB\-v\fR
Increment verbosity level by 1 (deprecated; supported for backward compatibility).
.TP 5
\fB\-\-threads\fR \fI<integer>\fR
Set maximum number of parallel threads (for POSIX threads and OpenMP).
.SS Input Options
.TP 5
\fB\-\-inversion-tolerance\fR \fI<double>\fR
Numerical tolerance of B-spline inversion in mm. Smaller values will lead to more accurate inversion, but may increase failure rate.
.B [Default: 1e-08]
.SS Fitting Options
.TP 5
\fB\-\-rigid\fR
Fit rigid transformation (rotation and translation only) using SVD.
.TP 5
\fB\-\-affine\fR
Fit full affine transformation (rotation, translation, scales, shears) using pseudoinverse.
\fB[This is the default]\fR
.SS Output Options
.TP 5
\fB\-\-output\fR \fI<transformation-path>\fR, \fB\-o\fR \fI<transformation-path>\fR
Path for the output transformation.
.B [Default: NONE]
.SH AUTHORS
Torsten Rohlfing, with contributions from Michael P. Hasak, Greg Jefferis, Calvin R. Maurer, Daniel B. Russakoff, and Yaroslav Halchenko
.SH LICENSE
http://www.fsf.org/licensing/licenses/gpl.html
.SH BUGS
Report bugs at http://nitrc.org/projects/cmtk/
.SH 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.