.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.3.
.TH IMAGEWARP "1" "October 2016" "GNU Astronomy Utilities 0.2.33-8a3b" "User Commands"
.SH NAME
ImageWarp \- warp (transform) input image
.SH SYNOPSIS
.B astimgwarp
[\fI\,OPTION\/\fR...] [\fI\,matrix.txt\/\fR] \fI\,ASTRdata \/\fR...
.SH DESCRIPTION
ImageWarp is part of GNU Astronomy Utilities 0.2.33\-8a3b.
ImageWarp will warp/transform the input image using an input coordinate matrix.
Currently it accepts any general projective mapping (which includes affine
mappings as a subset).
.PP
For more information, please run any of the following commands. They will
respectively show you the `Invoking ImageWarp' subsection, the complete
`ImageWarp' section, or the full GNU Astronomy Utilities manual. In particular
the first contains a very complete explanation of each option.
.IP
info astimgwarp
.IP
info ImageWarp
.IP
info gnuastro
.PP
If you couldn't find your answer in the manual, you can get direct help from
experienced Gnuastro users and developers. For more information, please run:
.IP
info help\-gnuastro
.PP
ImageWarp options:
.IP
Input:
.TP
\fB\-\-hendwcs\fR=\fI\,INT\/\fR
Header keyword number to stop reading WCS.
.TP
\fB\-\-hstartwcs\fR=\fI\,INT\/\fR
Header keyword number to start reading WCS.
.TP
\fB\-h\fR, \fB\-\-hdu\fR=\fI\,STR\/\fR
Extension name or number of input data.
.TP
\fB\-m\fR, \fB\-\-matrix\fR=\fI\,STR\/\fR
Warp/Transform matrix elements.
.TP
\fB\-\-nofitscorrect\fR
Do not shift to correct for FITS positioning.
.IP
Output:
.TP
\fB\-b\fR, \fB\-\-maxblankfrac\fR=\fI\,FLT\/\fR
Maximum fraction of area covered by blank.
.TP
\fB\-d\fR, \fB\-\-doubletype\fR
Do not convert output to input image type.
.TP
\fB\-D\fR, \fB\-\-dontdelete\fR
Don't delete output if it exists.
.TP
\fB\-K\fR, \fB\-\-keepinputdir\fR
Do not remove input's dir info for output.
.TP
\fB\-n\fR, \fB\-\-nowcscorrection\fR
Do not correct input image WCS.
.TP
\fB\-o\fR, \fB\-\-output\fR=\fI\,STR\/\fR
Output file or directory name.
.TP
\fB\-z\fR, \fB\-\-zerofornoinput\fR
Set pixels with no input to zero not blank.
.IP
Modular warpings:
.TP
\fB\-a\fR, \fB\-\-align\fR
Align the image and celestial axes.
.TP
\fB\-e\fR, \fB\-\-shear\fR=\fI\,FLT[\/\fR,FLT]
Shear along the given axis(es).
.TP
\fB\-f\fR, \fB\-\-flip\fR=\fI\,FLT[\/\fR,FLT]
Flip along the given axis(es).
.TP
\fB\-p\fR, \fB\-\-project\fR=\fI\,FLT[\/\fR,FLT]
Project along the given axis(es).
.TP
\fB\-r\fR, \fB\-\-rotate\fR=\fI\,FLT\/\fR
Rotate by the given angle in degrees.
.TP
\fB\-s\fR, \fB\-\-scale\fR=\fI\,FLT[\/\fR,FLT]
Scale along the given axis(es).
.TP
\fB\-t\fR, \fB\-\-translate\fR=\fI\,FLT[\/\fR,FLT]
Translate along the given axis(es).
.IP
Operating modes:
.TP
\-?, \fB\-\-help\fR
give this help list
.TP
\fB\-\-cite\fR
BibTeX citation for ImageWarp.
.TP
\fB\-\-nolog\fR
No log file for programs which make one.
.TP
\fB\-N\fR, \fB\-\-numthreads\fR=\fI\,INT\/\fR
Number of CPU threads to use.
.TP
\fB\-\-onlydirconf\fR
Only read current directory configuration file.
.TP
\fB\-\-onlyversion\fR=\fI\,STR\/\fR
Only run if the program version is this.
.TP
\fB\-P\fR, \fB\-\-printparams\fR
Print parameter values to be used and abort.
.TP
\fB\-q\fR, \fB\-\-quiet\fR
Only report errors, remain quiet about steps.
.TP
\fB\-S\fR, \fB\-\-setdirconf\fR
Set default values for this directory and abort.
.TP
\fB\-\-usage\fR
give a short usage message
.TP
\fB\-U\fR, \fB\-\-setusrconf\fR
Set default values for this user and abort.
.TP
\fB\-V\fR, \fB\-\-version\fR
print program version
.PP
Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.
.PP
GNU Astronomy Utilities home page: http://www.gnu.org/software/gnuastro/
.SH AUTHOR
Written by Mohammad Akhlaghi
.SH "REPORTING BUGS"
Report bugs to bug\-gnuastro@gnu.org.
.SH COPYRIGHT
Copyright \(co 2015\-2016, Free Software Foundation, Inc.
License GPLv3+: GNU General public license version 3 or later.
.br
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
.SH "SEE ALSO"
The full documentation for
.B ImageWarp
is maintained as a Texinfo manual.  If the
.B info
and
.B ImageWarp
programs are properly installed at your site, the command
.IP
.B info ImageWarp
.PP
should give you access to the complete manual.