hi Hanlie, can you tell me what value you put for -scale to convert into 8 bit?
cleo On Fri, Aug 22, 2014 at 7:02 PM, Hanlie Pretorius < [email protected]> wrote: > Hi Even, > > Yes, I quoted the exact message, but it displays in the QGIS interface. > > I tried gdal_translate with the -ot and -scale parameters on the > multispectral image and that worked much better, thanks. > > Regards > Hanlie > > 2014-08-21 20:33 MGT+02:00, Even Rouault <[email protected]>: > > Le jeudi 21 août 2014 08:57:32, Hanlie Pretorius a écrit : > >> Hi, > >> > >> I'm working with a 16 bit SPOT 6 image that I want to convert from 16 > >> bit pixel depth to 8 bit pixel depth. I say 16 bit, but if I load the > >> file into Envi, it reports that uses only 12 bits. However gdalinfo > >> reports 16 bit (see below). > >> > >> I've manage to do so on the multispectral image, but the result is > >> poor colour wise. > >> > >> So I split the image into its four bands that is, I now have one image > >> per > >> band. > >> > >> When I now try to convert to 8 bit, I get a message that says: > >> "Warning 742327101_R1C1_band1_8bit.TIF not created". > > > > Are you quoting the exact message ? I can't find any trace of it in the > > relevant parts of the source code. Did you check that you have write > > permissions in the directory where you launch the command ? > > > > Anyway for what you want to do you likely need to explore the -scale > option > > of > > gdal_translate. But that's unrelated to the error > > > >> > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev >
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