Brilliant ! That works well, and fast. For the record, a command like: gdal_translate -outsize 3.125% 3.125% XXXX.tif XXXX_dzm32.tif
serves to extract the 32:1 reduced-resolution level from a file created with a command like: gdaladdo -r cubic XXXX.tif 2 4 8 16 32 64 128 256 and the result is a nicely smoothed dezoom of the original. -----Original Message----- From: gdal-dev-boun...@lists.osgeo.org [mailto:gdal-dev-boun...@lists.osgeo.org] On Behalf Of Jean-Claude Repetto Sent: Tuesday, February 22, 2011 10:48 AM To: gdal-dev@lists.osgeo.org Subject: Re: [gdal-dev] Downsample with averaging? Le 22/02/2011 16:39, Jay Jennings a écrit : > >> there is a gdal method to extract a single overview level from a tif > but I can never > > >> remember it maybe someone will chime in... > > If so, that would be really helpful. Does anyone know how to extract a > single overview from a pyramid'd image such as made from a command like: > > gdaladdo XXXX.tif 2 4 8 16 32 64 128 256 > gdal_translate with the -outsize parameter should do the job. Jean-Claude _______________________________________________ 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
