r.composite
r.composite - Combines red, green and blue raster maps into a single composite raster map.
Raster (r.*)
ParameterRaster|red|Name of raster map to be used for <red>|False
ParameterRaster|green|Name of raster map to be used for <green>|False
ParameterRaster|blue|Name of raster map to be used for <blue>|False
ParameterNumber|levels|Number of levels to be used for each component|1.0|256.0|32
ParameterNumber|lev_red|Number of levels to be used for <red>|1.0|256.0|32
ParameterNumber|lev_green|Number of levels to be used for <green>|1.0|256.0|32
ParameterNumber|lev_blue|Number of levels to be used for <blue>|1.0|256.0|32
ParameterBoolean|-d|Dither|False
ParameterBoolean|-c|Use closest color|False
OutputRaster|output|Name for output raster map