astmknoise(1)

add noise to an image

Section 1 gnuastro bookworm source

Description

MAKENOISE

NAME

MakeNoise - add noise to an image

SYNOPSIS

astmknoise [OPTION...] ASTRdata

DESCRIPTION

MakeNoise is part of GNU Astronomy Utilities 0.19. 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 © 2015-2022 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 Mohammad Akhlaghi