raster map value domain -> image domain, Permanent color composite

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raster map value domain -> image domain, Permanent color composite

Peter Brakels
Hi, i have imported some satellite band images with Gdal. The raster maps get a value domain by default. But i need the raster maps to have an image domain, to make a permanent color composite.
If i change the domain of the raster maps manually, the permanent color composite appears black. I have no idea how to tackle this problem. Any suggestions?

Thanks in advance.

Peter
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Re: raster map value domain -> image domain, Permanent color composite

schouwenburg
You can either play with the change value range option in the properties form or simply create from the command line

mynewmap{dom=image} = myoldmap

Assuming that the old map has values between 0..255. The property form method I always find a bit iffy as the question you get is not 100% clear.

Martin Schouwenburg
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-----Original Message-----
From: Ilwis [mailto:[hidden email]] On Behalf Of Peter Brakels
Sent: vrijdag 9 mei 2014 8:09
To: [hidden email]
Subject: [Ilwis] raster map value domain -> image domain, Permanent color composite

Hi, i have imported some satellite band images with Gdal. The raster maps get a value domain by default. But i need the raster maps to have an image domain, to make a permanent color composite.
If i change the domain of the raster maps manually, the permanent color composite appears black. I have no idea how to tackle this problem. Any suggestions?

Thanks in advance.

Peter



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