[...] > Anyhow, exporting the group of 3 bands with r.out.tiff or r.out.gdal > works but there is something important: I don't like the white > background. I would like to have a black backgroud surrounding my map. I > could not get that really. I think I managed to see that only when I > reduced levels with r.composite. Don't remember right now but I think > rescaling initial bands with range from 0 up to 8000 in to 0 to 255 and > export the group did not work either. ...and setting nodata=0!
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