NAME

       vimos_ima_bias - Bias combination for imaging

SYNOPSIS

       esorex vimos_ima_bias [OPTIONS] FILE.sof

DESCRIPTION

       vimos_ima_bias -- VIMOS bias combine recipe.

       Combine  a list of bias frames into a mean bias frame. Optionally compare the output frame to a reference
       bias frame

       The program accepts the following files in the SOF:

           Tag                   Description

           BIAS                  A list of raw bias images
           REFERENCE_BIAS        Optional reference bias frame If no reference bias  frame  is  made  available,
       then no comparison will be done. This means there will be no output difference image or stats table.

OPTIONS

       --combtype <str>
              Combination  algorithm  (str;  default:  ´median´).  The  full  name of this option for the EsoRex
              configuration file is vimos.vimos_ima_bias.combtype [default = median].

       --xrej <bool>
              True if using extra rejection cycle (bool; default: True). The full name of this  option  for  the
              EsoRex configuration file is vimos.vimos_ima_bias.xrej [default = True].

       --thresh <float>
              Rejection  threshold in sigma above background (float; default: 5.0). The full name of this option
              for the EsoRex configuration file is vimos.vimos_ima_bias.thresh [default = 5.0].

       --ncells <int>
              Number of cells for diff image stats (int; default: 64). The full name  of  this  option  for  the
              EsoRex configuration file is vimos.vimos_ima_bias.ncells [default = 64].

       --prettynames <bool>
              Use  pretty output file names? (bool; default: False). The full name of this option for the EsoRex
              configuration file is vimos.vimos_ima_bias.prettynames [default = False].

       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.

SEE ALSO

       The full documentation for the vimos pipeline can be downloaded as a PDF file using the following URL:

              ftp://ftp.eso.org/pub/dfs/pipelines/vimos/vimos-pipeline-manual-6.9.pdf

       An    overview    over    the    existing    ESO    pipelines    can   be   found   on   the   web   page
       https://www.eso.org/sci/software/pipelines/.

       Basic documentation about the EsoRex program can be found at the esorex (1) man page.

       It  is  possible  to  call   the   pipelines   from   python   using   the   python-cpl   package.    See
       https://packages.python.org/python-cpl/index.html for further information.

       The    other   recipes   of   the   vimos   pipeline   are   vimos_ima_dark(7),   vimos_ima_det_noise(7),
       vimos_ima_fringe(7), vimos_ima_science(7), vimos_ima_standard(7), vimos_ima_twilight_flat(7),  vmbias(7),
       vmdark(7),    vmdet(7),    vmifucalib(7),    vmifucombine(7),    vmifucombinecube(7),    vmifuscience(7),
       vmifustandard(7), vmmoscalib(7), vmmosscience(7), vmspphot(7)

VERSION

       vimos_ima_bias 4.1.7

AUTHOR

       Jim Lewis <jrl@ast.cam.ac.uk>

BUG REPORTS

       Please report any problems to jrl@ast.cam.ac.uk. Alternatively, you may send a report  to  the  ESO  User
       Support Department <usd-help@eso.org>.

LICENSE

       This file is part of the VIMOS Instrument Pipeline Copyright (C) 2019 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA