MakeNoise - add noise to an image
astmknoise [OPTION...] ASTRdata
MakeNoise is part of GNU Astronomy Utilities 0.14. 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...
- 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
- Minimum bytes in array to not use ram RAM.
- -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/
Report bugs to bug-gnuastro@gnu.org.
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
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.