.TH VISIR_IMG_FF "7" "4.3.10" "visir_img_ff" "visir recipes"
.SH NAME
visir_img_ff \- Flat field recipe

.SH SYNOPSIS
esorex
.B visir_img_ff
[OPTIONS] FILE.sof

.SH DESCRIPTION
This recipe computes the flatfield.
.PP
The files listed in the Set Of Frames (sof\-file) must be tagged either
VISIR\-flatfield\-raw\-file.fits IM_CAL_FLAT or
VISIR\-flatfield\-raw\-file.fits IM_TECH_FLAT or
VISIR\-flatfield\-raw\-file.fits SPEC_CAL_FLAT or
VISIR\-flatfield\-raw\-file.fits SPEC_TECH_FLAT

The corresponding primary product will have a FITS card
\'HIERARCH ESO PRO CATG\' with a value of
IMG_FF or
IMG_FF_TECH or
SPEC_FF or
SPEC_FF_TECH


.SH OPTIONS
.TP
\fB\-\-low\fR \fI<float>\fR
Low threshold for the bad pixel map (float; default: 0.2). The full name of this option for the EsoRex configuration
file is \fBvisir.visir_img_ff.low\fR [default = \fI0.2\fR].
.TP
\fB\-\-high\fR \fI<float>\fR
High threshold for the bad pixel map (float; default: 5.0). The full name of this option for the EsoRex configuration
file is \fBvisir.visir_img_ff.high\fR [default = \fI5.0\fR].

.PP
Note that it is possible to create a configuration file containing these
options, along with suitable default values. Please refer to the details
provided by the 'esorex \-\-help' command.

.SH SEE ALSO
The full documentation for the visir pipeline can be downloaded as 
a PDF file using the following URL:
.IP
.B ftp://ftp.eso.org/pub/dfs/pipelines/visir/visir\-pipeline\-manual\-1.4.pdf
.PP
An overview over the existing ESO pipelines can be found on the web page
\fBhttps://www.eso.org/sci/software/pipelines/\fR.
.PP
Basic documentation about the EsoRex program can be found at the esorex (1) 
man page.
.PP
It is possible to call the pipelines from python using the python\-cpl package.
See \fBhttps://packages.python.org/python\-cpl/index.html\fR for further
information.
.PP
The other recipes of the visir pipeline are
.IR visir_img_dark (7),
.IR visir_img_reduce (7),
.IR visir_img_trans (7),
.IR visir_old_img_combine (7),
.IR visir_old_img_phot (7),
.IR visir_old_spc_obs (7),
.IR visir_old_spc_obs_ech (7),
.IR visir_old_spc_phot (7),
.IR visir_old_spc_phot_ech (7),
.IR visir_old_spc_wcal (7),
.IR visir_old_spc_wcal_ech (7),
.IR visir_old_util_destripe (7),
.IR visir_spc_reduce (7),
.IR visir_util_apply_calib (7),
.IR visir_util_clip (7),
.IR visir_util_convert_weight (7),
.IR visir_util_detect_shift (7),
.IR visir_util_img_std_cat (7),
.IR visir_util_join (7),
.IR visir_util_qc (7),
.IR visir_util_repack (7),
.IR visir_util_run_swarp (7),
.IR visir_util_spc_std_cat (7),
.IR visir_util_spc_txt2fits (7),
.IR visir_util_undistort (7)

.SH VERSION
visir_img_ff 4.3.10

.SH AUTHOR
Lars Lundin <usd\-help@eso.org>

.SH BUG REPORTS
Please report any problems to usd\-help@eso.org. Alternatively, you may send a report to the ESO User Support Department <usd\-help@eso.org>.

.SH LICENSE
This file is part of the VISIR Instrument Pipeline
Copyright (C) 2004, 2005 European Southern Observatory

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, 
MA  02111\-1307  USA