[gdal-dev] Is it possible to have an external Color Table definition for GeoTIFF rasters?

[Even Rouault]

Denis,
> But the same approach (having a color table in external .aux.xml PAM 
> file) doesn't work for GeoTIFF rasters. According to the output of 
> gdal_translate we can see that GDAL doesn't take into account the 
> color table defined in the external file.

Please file an issue about that, or even better, propose a pull request. 
This should mostly be a matter of having 
GTiffRasterBand::GetColorTable() call the base implementation of 
GDALPamRasterBand

Even


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