[GRASSLIST:1402] r.patch geotiff-mosaic wrong color problem

[Juergen Ambrosy]

Hello,

I'm very new to Grass GIS and have just compiled 5.0.2 and installed it 
succesfully on Suse Linux 8.1.
Now I'm trying to merge several Geotiff 8-bit images into one mosaic, but I 
have problems with r.patch. The output shows only one image - first one - 
with correct colors - the others are totally scrambled. Just overlaying one 
by another it shows that the import with r.in.gdal was ok.
I found that Mr. Neteler had some problems with r.patch, too. But if I use his 
script i.image.mosaic (which uses r.mapcalc to patch the images) I get no 
color output - although I set the map region big enough.

I'm kind of desperate now - anybody got an idea how to create a mosaic of 
several geotiff images?

-- 
Juergen Ambrosy

juergen.ambrosy at ewetel.net