NAME

       hawki_step_compute_bkg - Background computing utility

SYNOPSIS

       esorex hawki_step_compute_bkg [OPTIONS] FILE.sof

DESCRIPTION

       hawki_step_compute_bkg -- hawki background computation utility.

       This  recipe  will create the associated background images for a given set of object images. If there are
       sky images, these will be used to compute the background, otherwise, the background is computed  using  a
       running mean on the object images. An optional mask can be supplied for the running mean.

       The files listed in the Set Of Frames (sof-file) must be tagged: obj_basic_cal-file.fits BASIC_CALIBRATED
       or  sky_basic_cal-file.fits SKY_BASIC_CALIBRATED and optionally for object masking: object_mask-file.fits
       OBJ_MASK offsets.fits OFFSETS_REFINED distortion_x.fits DISTORTION_X distortion_y.fits DISTORTION_Y

OPTIONS

       --nmin_comb <long>
              Minimum number of jitter frames to use the running median (long; default: 10). The  full  name  of
              this option for the EsoRex configuration file is hawki.hawki_step_compute_bkg.nmin_comb [default =
              10].

       --nhalf_window <long>
              Number of images at both sides of the current ima to use for bkg in running median (long; default:
              7).    The    full    name    of    this   option   for   the   EsoRex   configuration   file   is
              hawki.hawki_step_compute_bkg.nhalf_window [default = 7].

       --rejlow <long>
              The number of frames with low level to reject (long; default: 2). The full name of this option for
              the EsoRex configuration file is hawki.hawki_step_compute_bkg.rejlow [default = 2].

       --rejhigh <long>
              The number of frames with high level to reject (long; default: 2). The full name  of  this  option
              for the EsoRex configuration file is hawki.hawki_step_compute_bkg.rejhigh [default = 2].

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

              ftp://ftp.eso.org/pub/dfs/pipelines/hawki/hawki-pipeline-manual-1.8.18.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   hawki   pipeline   are   hawki_cal_dark(7),   hawki_cal_distortion(7),
       hawki_cal_flat(7),        hawki_cal_zpoint(7),       hawki_sci_jitter(7),       hawki_step_apply_dist(7),
       hawki_step_basic_calib(7), hawki_step_combine(7),  hawki_step_detect_obj(7),  hawki_step_photom_2mass(7),
       hawki_step_refine_offsets(7),   hawki_step_stats(7),   hawki_step_stitch(7),  hawki_step_subtract_bkg(7),
       hawki_tec_filtchk(7), hawki_util_gendist(7), hawki_util_stdstars(7)

VERSION

       hawki_step_compute_bkg 1.8.18

AUTHOR

       Cesar Enrique Garcia Dabo <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 HAWKI Instrument Pipeline Copyright (C) 2002,2011 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 Street, Fifth Floor, Boston, MA 02110-1301 USA

hawki_step_compute_bkg                               1.8.18                            HAWKI_STEP_COMPUTE_BKG(7)