r.rgb - Splits a raster map into red, green and blue maps.
Contents
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’.
Keywords
raster, RGB, separate, split
Name
r.rgb - Splits a raster map into red, green and blue maps.
See Also
r.composite,r.blend,r.colors,r.mapcalc
Source Code
Available at: r.rgb source code (history)
Accessed: Friday Apr 04 01:21:12 2025
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© 2003-2025 GRASS Development Team, GRASS GIS 8.4.1 Reference Manual
GRASS 8.4.1 r.rgb(1grass)
Synopsis
r.rgbr.rgb--helpr.rgbinput=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
