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       hawki_step_compute_bkg - Background computing utility


       esorex hawki_step_compute_bkg [OPTIONS] FILE.sof


       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


       --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'


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


       An  overview  over  the  existing  ESO  pipelines  can  be   found   on   the   web   page

       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 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)


       hawki_step_compute_bkg 1.8.18


       Cesar Enrique Garcia Dabo <>


       Please  report  any  problems to Alternatively, you may send a report to
       the ESO User Support Department <>.


       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