Le mardi 23 avril 2013 21:52:39, David Strip a écrit : > I have a paletted geotiff that I want to modify by mapping palette > entries to a new palette. > Thus, I have an input palette, an output palette, and a geotiff. I have > a mapping (many to 1, if it matters) from the input palette to the > output palette. Each pixel in the output geotiff will have a value > equivalent to mapping the input geotiff's pixel value through the map. > > I've looked over the utilities and none seems to have this capability. > It would be pretty easy, I think to write code using gdal to do this, > but if one of the utilities will handle this case, that's even better. >
One possibility would be to use a VRT file where you specify a <LUT> element to map the indices from the input palette to the indices of the output palette. See http://www.gdal.org/gdal_vrttut.html for the syntax. > Thanks. > > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
