Le jeudi 27 octobre 2016 15:02:11, Travis Kirstine a écrit : > I've been looking at resampling high resolution orthophoto images (0.10m) > using gdalwarp vs gdal_translate to a lower resolution > > gdalwarp -co TILED=YES -srcnodata "0 0 0" -dstnodata "0 0 0" -tr 2 2 -r > bilinear in.tif warp_2m_bilinear.tif > > compared to > > gdal_translate -co TILED=YES -a_nodata 0 -tr 2 2 -r bilinear input.tif > translate_2m_bilinear > > > It appears to me that gdal_translate produces a much "better" result with > reduced aliasing. Why would the results differ?
Does gdalinfo on the output of both files report the same spatial extent ? gdalwarp and gdal_translate have different logic to compute it when not explicitly mentionned. -- Spatialys - Geospatial professional services http://www.spatialys.com _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
