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

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)