In general I having problems generating big tiffs in a timely manner. I also have the following scenario in which I am trying to create an overview tiff from some already existing tiffs.
image.tif (524288, 262144) image.tif.ovr image.tif.ovr.ovr image.tif.ovr.ovr.ovr image.tif.ovr.ovr.ovr.ovr image.tif.ovr.ovr.ovr.ovr.ovr image.tif.ovr.ovr.ovr.ovr.ovr.ovr image.tif.ovr.ovr.ovr.ovr.ovr.ovr.ovr image.tif.ovr..ovr.ovr.ovr.ovr.ovr.ovr.ovr Each overview is a factor of 2 smaller. When I create the final tiff with overviews: gdal_translate image.tif image_w_overview.tif -co COPY_SRC_OVERVIEWS=YES I assume that the destination tiff needs to be completely recreated. This is taking a really long time. > day. Any ideas on how I can create this final overview tiff in a more timely manner as well. Is my file just too big to expect the overview to be created faster? Thanks again! On Fri, Nov 16, 2012 at 1:18 PM, Even Rouault <[email protected]> wrote: > Le vendredi 16 novembre 2012 21:12:07, Billy Newman a écrit : >> I have a process that is stitching together a lot of tif files to >> create on big tif. >> >> I am doing: >> >> gdalbuildvrt output.vrt *.tif >> gdaltranslate -co COMPRESS=LZW output.vrt final.tif >> >> Any more options that I can throw at gdaltranslate to speed up the >> translation? > > If your target TIFF has very large dimensions, it might perhaps be helpful to > make it tiled with -co TILED=YES . > >> >> Thanks! >> _______________________________________________ >> gdal-dev mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/gdal-dev _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
