NAME

       MakeNoise - add noise to an image

SYNOPSIS

       astmknoise [OPTION...] ASTRdata

DESCRIPTION

       MakeNoise  is  part  of  GNU  Astronomy Utilities 0.16.  MakeNoise will add noise to all the pixels in an
       input dataset. The noise parameters can be specified with the options below.

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

       All options and their values:
              $ astmknoise -P

       Inputs/Outputs and options:
              $ info astmknoise

       Full section in manual/book:
              $ info MakeNoise

       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

       MakeNoise options:

              Input:

       -b, --background=FLT
              Fixed background magnitude for whole input.

       -h, --hdu=STR/INT
              Extension name or number of input data.

       -i, --instrumental=FLT
              Instrument noise level (in pixel value units).

       -I, --ignorecase
              Ignore case in matching/searching columns.

       -s, --sigma=FLT
              Total noise sigma, ignore other options.

       -z, --zeropoint=FLT
              Zeropoint magnitude of input.

              Output:

       -D, --dontdelete
              Don't delete output if it exists.

       -K, --keepinputdir
              Keep input directory for automatic output.

       -o, --output=STR
              Output file name.

       -T, --type=STR
              Type of output: e.g., int16, float32, etc...

       --wcslinearmatrix=STR
              WCS linear matrix of output ('pc' or 'cd').

              Operating modes:

       -?, --help
              give this help list

       -B, --bgisbrightness
              Background is brightness, not magnitude.

       --checkconfig
              List all config files and variables read.

       --cite BibTeX citation for this program.

       --config=STR
              Read configuration file STR immediately.

       -e, --envseed
              Use GSL_RNG_SEED environment variable for seed

       --lastconfig
              Do not parse any more configuration files.

       --log  Information about output(s) in a log file.

       --minmapsize=INT
              Min. bytes to avoid RAM automatically.

       -N, --numthreads=INT
              Number of CPU threads to use.

       --onlyversion=STR
              Only run if the program version is STR.

       -P, --printparams
              Print parameter values to be used and abort.

       --quietmmap
              Don't print mmap'd file's name and size.

       -q, --quiet
              Only report errors, remain quiet about steps.

       -S, --setdirconf
              Set default values for this directory and abort.

       --usage
              give a short usage message

       -U, --setusrconf
              Set default values for this user and abort.

       -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: http://www.gnu.org/software/gnuastro/

REPORTING BUGS

       Report bugs to bug-gnuastro@gnu.org.

COPYRIGHT

       Copyright © 2015-2021, 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 Mohammad Akhlaghi

SEE ALSO

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

              info MakeNoise

       should give you access to the complete manual.

GNU Astronomy Utilities 0.16                      October 2021                                      MAKENOISE(1)