Provided by: gnuastro_0.18-1_amd64 bug


       astscript-psf-scale-factor - Find factor to scale PSF to a given star in an image


       astscript-psf-scale-factor [OPTION] FITS-files


       This script is part of GNU Astronomy Utilities 0.18.

       This  script  will  consider  a center position and then compute the factor by which it is
       necessary to multiply the specified PSF image in order to match it with the object at  the
       center  (within  a ring radii). The main idea is to have the necessary factor that will be
       used to allocate the PSF with the proper flux value for constructing the  scattered  light

       For  more  information,  please run any of the following commands. In particular the first
       contains a very comprehensive explanation of this script's invocation: expected  input(s),
       output(s), and a full description of all the options.

       Inputs/Outputs and options:
              $ info astscript-psf-scale-factor

       Full Gnuastro manual/book:
              $ info gnuastro

       If  you  couldn't find your answer in the manual, you can get direct help from experienced
       Gnuastro users and developers. For more information, please run:

              $ info help-gnuastro

   astscript-psf-scale-factor options:

       -h, --hdu=STR
              HDU/extension of all input FITS files.

       -p, --psf=STR
              PSF image fits file.

       -P, --psfhdu=STR
              HDU/extension of the PSF image.

       -O, --mode=STR
              Coordinates mode ('wcs' or 'img').

       -c, --center=FLT,FLT
              Center coordinates of the object.

       -W, --stampwidth=INT
              Width of the stamp in pixels.

       -n, --normradii=INT,INT Minimum and maximum radii (in pixels)
              for computing the scaling factor value.

       -S, --segment=STR
              Output of Segment (with OBJECTS and CLUMPS).

       -s, --sigmaclip=FLT,FLT Sigma-clip multiple and tolerance.


       -t, --tmpdir
              Directory to keep temporary files.

       -k, --keeptmp
              Keep temporal/auxiliar files.

              Operating mode:

       -?, --help
              Print this help list.

       --cite BibTeX citation for this program.

       -q, --quiet
              Don't print any extra information in stdout.

       -V, --version
              Print program version.

       Mandatory or optional arguments to long options are also mandatory  or  optional  for  any
       corresponding short options.

       GNU Astronomy Utilities home page:


       Report bugs to


       Copyright  ©  2020-2022 Free Software Foundation, Inc.  License GPLv3+: GNU General public
       license version 3 or later.
       This is free software: you are free to change and redistribute it.  There is NO  WARRANTY,
       to the extent permitted by law.

       Written/developed by Raul Infante-Sainz


       The  full  documentation for astscript-psf-scale-factor is maintained as a Texinfo manual.
       If the info and astscript-psf-scale-factor programs are properly installed at  your  site,
       the command

              info astscript-psf-scale-factor

       should give you access to the complete manual.