Note: This document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade, and read the current manual page.
NAME
r.blend - Blends color components of two raster maps by a given ratio.
KEYWORDS
raster,
composite
SYNOPSIS
r.blend
r.blend --help
r.blend [-c] first=name second=name output=basename [percent=float] [--overwrite] [--help] [--verbose] [--quiet] [--ui]
Flags:
- -c
- Combine resulting R,G,B layers into single output map
- --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:
- first=name [required]
- Name of first raster map for blending
- second=name [required]
- Name of second raster map for blending
- output=basename [required]
- Basename for red, green and blue output raster maps
- percent=float
- Percentage weight of first map for color blending
- Options: 0-100
- Default: 50
r.blend blends color components of 2 raster maps by a
specified percentage of the first map.
Blending the aspect map with the elevation map for a shaded map
(North Carolina sample dataset):
g.region raster=elevation
r.relief input=elevation output=relief zscale=10
r.blend -c first=elevation second=relief output=blend percent=75
Figure: Elevation blended with shaded relief
d.shade,
g.region,
r.shade,
r.colors,
r.his,
r.mapcalc,
r.rgb,
r.support
Unknown: probably CERL
Updated to GRASS 5.7 by Michael Barton, Arizona State University
SOURCE CODE
Available at:
r.blend source code
(history)
Latest change: Saturday Jun 10 01:15:54 2023 in commit: faef2c661d632baacd67af3257cf69df135362d2
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GRASS Development Team,
GRASS GIS 8.3.3dev Reference Manual