Le 20/01/2011 14:48, Jean-Claude Repetto a écrit : > I know that I can assemble the 4 tiles with gdalwarp or gdal_merge. But > how do I assemble the resulting 1024x1024 image (level 17) with the > 256x256 image (level 16) to form a pyramid ? Sorry ; please read 512x512 instead of 1024x1024.