NAME

       visir_util_convert_weight - Conversion between different weight maps

SYNOPSIS

       esorex visir_util_convert_weight [OPTIONS] FILE.sof

DESCRIPTION

       The  files  listed  in  the  Set Of Frames (sof-file) must be tagged: VISIR-weight-map.fits WEIGHT_MAP or
       VISIR-error-map.fits ERROR_MAP or VISIR-variance-map.fits VARIANCE_MAP VISIR-bpm-file.fits BPM (optional)

       The relation between an error e, a weight w and a variance v is: e = sqrt(v) = 1/sqrt(w).

       Depending on the setting of the boolean recipe parameters  each  input  file  will  cause  the  following
       product(s)  to  be  created  (each  with  a  FITS  card ´HIERARCH ESO PRO CATG´ with the specified value)
       ERROR_MAP: An error map, requires input v >= 0, w > 0 WEIGHT_MAP: A weight map, requires input e > 0, v >
       0 VARIANCE_MAP: A variance map, requires input e >= 0, w > 0 If for a given input the identical output is
       specified, the data unit(s) may still change according to the provided bad pixel  map  In  a  weight  map
       product any bad pixel is set to 0.

       In  a  variance  or  error map product any bad pixel is set to the value specified by the relevant recipe
       option.

OPTIONS

       --error <bool>
              Convert to error (bool; default: True). The full name of this option for the EsoRex  configuration
              file is visir.visir_util_convert_weight.error [default = True].

       --weight <bool>
              Convert  to  weight. Bad pixels are seto to 0 (bool; default: False). The full name of this option
              for the EsoRex configuration file is visir.visir_util_convert_weight.weight [default = False].

       --variance <bool>
              Convert to variance. Bad pixels are seto to 0 (bool; default: False). The full name of this option
              for the EsoRex configuration file is visir.visir_util_convert_weight.variance [default = False].

       --bad_value <float>
              The   value   to   use   for  any  bad  pixel  in  an  error  or  variance  map  (float;  default:
              3.4028234663852886e+38). The full name of  this  option  for  the  EsoRex  configuration  file  is
              visir.visir_util_convert_weight.bad_value [default = 3.4028234663852886e+38].

       --bad_flag <bool>
              The  value used to flag a bad pixel in an input bad pixel map. True: 1.  False: 0. (bool; default:
              True).   The   full   name   of   this   option   for   the   EsoRex   configuration    file    is
              visir.visir_util_convert_weight.bad_flag [default = True].

       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 visir pipeline can be downloaded as a PDF file using the following URL:

              ftp://ftp.eso.org/pub/dfs/pipelines/visir/visir-pipeline-manual-1.4.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 visir  pipeline  are  visir_img_dark(7),  visir_img_ff(7),  visir_img_reduce(7),
       visir_img_trans(7),      visir_old_img_combine(7),      visir_old_img_phot(7),      visir_old_spc_obs(7),
       visir_old_spc_obs_ech(7),   visir_old_spc_phot(7),   visir_old_spc_phot_ech(7),    visir_old_spc_wcal(7),
       visir_old_spc_wcal_ech(7),  visir_old_util_destripe(7),  visir_spc_reduce(7),  visir_util_apply_calib(7),
       visir_util_clip(7),    visir_util_detect_shift(7),     visir_util_img_std_cat(7),     visir_util_join(7),
       visir_util_qc(7),      visir_util_repack(7),      visir_util_run_swarp(7),     visir_util_spc_std_cat(7),
       visir_util_spc_txt2fits(7), visir_util_undistort(7)

VERSION

       visir_util_convert_weight 4.3.8

AUTHOR

       Lars Lundin <usd-help@eso.org>

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>.

LICENSE

       This file is part of the VISIR Instrument Pipeline Copyright (C) 2011 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