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