[GRASS-user] export 3-tiff image from d.rgb as georeferenced simple color image

GRASS GRASS user
,
1

Hello,

I would like to know if there is a way to save a composite image done with d.rgb (from three tiff files) as a simple colored georeferenced tiff image which can be used then in QGIS.

Any suggestions?

Thanks

Lucien

2

Hi,

2013/10/10 BLANDENIER Lucien <lucien.blandenier@unine.ch>:

I would like to know if there is a way to save a composite image done with d.rgb (from three tiff files) as a simple colored georeferenced tiff image which can be used then in QGIS.

use r.composite [1] and then export raster as TIF using r.out.gdal.

Martin

[1] http://grass.osgeo.org/grass70/manuals/r.composite.html

--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa

3

BLANDENIER Lucien:

> I would like to know if there is a way to save a composite image done with
> d.rgb (from three tiff files) as a simple colored georeferenced tiff
> image which can be used then in QGIS.

Martin:

use r.composite [1] and then export raster as TIF using r.out.gdal.
[1] http://grass.osgeo.org/grass70/manuals/r.composite.html

A reminder that it is very convenient to export a group using r.out.gdal, e.g.

i.group group=rgb in=Red,Green,Blue # where Red, Green & Blue the Rasters of
interest

r.out.gdal rgb out=rgb.tif type=Byte # check other options for producing ESRI
supported/readable material

<http://grass.osgeo.org/grass70/manuals/r.out.gdal.html&gt;

Nikos