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 = 3.40282346639e+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
       http://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
       http://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 4.3.3

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