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r.rgb(1grass) Grass User's Manual r.rgb(1grass)

NAME

r.rgb - Splits a raster map into red, green and blue maps.

KEYWORDS

raster, RGB, separate, split

SYNOPSIS

r.rgb
r.rgb --help
r.rgb input=name [red=name] [green=name] [blue=name] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--overwrite

Allow output files to overwrite existing files
--help

Print usage summary
--verbose

Verbose module output
--quiet

Quiet module output
--ui

Force launching GUI dialog

Parameters:

input=name [required]

Name of input raster map
red=name

Red channel raster map name
green=name

Green channel raster map name
blue=name

Blue channel raster map name

DESCRIPTION

r.rgb generates separate red, green and blue maps from a raster map and its associated color table (grey255).

EXAMPLE


g.region raster=elevation -p
r.rgb input=elevation red=elevation.r green=elevation.g blue=elevation.b

In this case r.rgb produces in the current mapset three new raster maps - ’elevation.r’, ’elevation.g’, ’elevation.b’.

SEE ALSO

r.composite, r.blend, r.colors, r.mapcalc

AUTHOR

Glynn Clements

Last changed: $Date: 2016-03-18 15:09:00 +0100 (Fri, 18 Mar 2016) $

SOURCE CODE

Available at: r.rgb source code (history)

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© 2003-2016 GRASS Development Team, GRASS GIS 7.2.0 Reference Manual

GRASS 7.2.0