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2007.07.05 13:45 "Re: 16-Bit-Per-Channel Lossless Compression", by Joris Van Damme
Andrey, Andrey Kiselev wrote: > $ gdal_translate -co "COMPRESS=ZIP" -co "PREDICTOR=2" -co "TILED=YES" > -co "BLOCKXSIZE=256" -co "INTERLEAVE=BAND" IMG_2948.Flowers1.tif > IMG_2948.Flowers1-zip2-tiled-sep.tif As I don't speak gdalese, what size do tiles have in your test? It's my opinion ideally efficient tiles over a broad range of compression modes, that fit workflow on today's machines best, are in the order of about 1 to 3 megabyte, not the legacy 8 kilobyte (uncompressed, of course). I believe that for some compression modes, tile size does have a considerable impact on efficienty. Best regards, Joris Van Damme info@awaresystems.be http://www.awaresystems.be/ Download your free TIFF tag viewer for windows here: http://www.awaresystems.be/imaging/tiff/astifftagviewer.html