hi, there is a large raster file (8GB) available:
http://users.cbk.waw.pl/~mkrupinski/S2GLC_Europe_2017_v1.1_grey.zip with quite heavy internal overviews. what I want to do, is to get rid of the internal overviews and a smaller file. when I do a gdal_translate to a target geotiff, are the overviews copied to the target geotiff too? in https://gdal.org/drivers/raster/gtiff.html COPY_SRC_OVERVIEWS=[YES/NO]: (CreateCopy() only) By setting this to YES (default is NO), the potential existing overviews of the source dataset will be copied to the target dataset without being recomputed. [...] Note that this creation option will have no effect if general options (i.e. options which are not creation options) of gdal_translate are used. Creation options related to compression are also applied to the output overviews. I've read in https://gdal.org/programs/gdaladdo.html For internal GeoTIFF overviews (or external overviews in GeoTIFF format), note that -clean does not shrink the file. gdaladdo -clean removes only the pointer to the overviews. thanks ----- best regards Helmut -- Sent from: http://osgeo-org.1560.x6.nabble.com/GDAL-Dev-f3742093.html _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/gdal-dev
