.TH r.rgb 1grass "" "GRASS 7.8.5" "GRASS GIS User's Manual"
.SH NAME
\fI\fBr.rgb\fR\fR  \- Splits a raster map into red, green and blue maps.
.SH KEYWORDS
raster, RGB, separate, split
.SH SYNOPSIS
\fBr.rgb\fR
.br
\fBr.rgb \-\-help\fR
.br
\fBr.rgb\fR \fBinput\fR=\fIname\fR  [\fBred\fR=\fIname\fR]   [\fBgreen\fR=\fIname\fR]   [\fBblue\fR=\fIname\fR]   [\-\-\fBoverwrite\fR]  [\-\-\fBhelp\fR]  [\-\-\fBverbose\fR]  [\-\-\fBquiet\fR]  [\-\-\fBui\fR]
.SS Flags:
.IP "\fB\-\-overwrite\fR" 4m
.br
Allow output files to overwrite existing files
.IP "\fB\-\-help\fR" 4m
.br
Print usage summary
.IP "\fB\-\-verbose\fR" 4m
.br
Verbose module output
.IP "\fB\-\-quiet\fR" 4m
.br
Quiet module output
.IP "\fB\-\-ui\fR" 4m
.br
Force launching GUI dialog
.SS Parameters:
.IP "\fBinput\fR=\fIname\fR \fB[required]\fR" 4m
.br
Name of input raster map
.IP "\fBred\fR=\fIname\fR" 4m
.br
Red channel raster map name
.IP "\fBgreen\fR=\fIname\fR" 4m
.br
Green channel raster map name
.IP "\fBblue\fR=\fIname\fR" 4m
.br
Blue channel raster map name
.SH DESCRIPTION
\fIr.rgb\fR generates separate red, green and blue maps from a
raster map and its associated color table (grey255).
.SH EXAMPLE
.br
.nf
\fC
g.region raster=elevation \-p
r.rgb input=elevation red=elevation.r green=elevation.g blue=elevation.b
\fR
.fi
.PP
In this case \fIr.rgb\fR produces in the current mapset three new
raster maps \- \(cqelevation.r\(cq, \(cqelevation.g\(cq, \(cqelevation.b\(cq.
.PP
.br
.SH SEE ALSO
\fI
r.composite,
r.blend,
r.colors,
r.mapcalc
\fR
.SH AUTHOR
Glynn Clements
.SH SOURCE CODE
.PP
Available at: r.rgb source code (history)
.PP
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.PP
© 2003\-2020
GRASS Development Team,
GRASS GIS 7.8.5 Reference Manual