Tiff is a very robust format if used correctly. Read through gdal's Creation Properties [0] and add as you see fit at "Save Raster layer as.." dialog -> "Create Options" sector
N [0] http://www.gdal.org/frmt_gtiff.html On Sun, May 3, 2015 at 2:19 AM, Nicolas Cadieux <[email protected]> wrote: > Thanks! > > Nicolas Cadieux M.Sc. > Les Entreprises Archéotec inc. > 8548, rue Saint-Denis Montréal H2P 2H2 > Téléphone: 514.381.5112 Fax: 514.381.4995 > www.archeotec.ca > > On May 2, 2015 14:43, Alex Mandel <[email protected]> wrote: >> >> Just add Deflate or LZW compression to your tif (both are loseless, JPG >> is not). The output files will be 10%-50% the size of the original in >> most cases. >> >> See the following post for a comparison of settings. >> http://linfiniti.com/2011/05/gdal-efficiency-of-various-compression-algorithms/ >> >> Enjoy, >> Alex >> >> On 05/02/2015 07:36 AM, Nicolas Cadieux wrote: >> > Hi, >> > >> > I will be making huge... (No HUGE) DEMs file in QGIS. I usually use .tif >> > or.tiff (not really sure what the real difference is) but they are large >> > files. >> > >> > What would be the best Qgis raster format permitting both smaller disk >> > storage, lossless compression and ease of analysis using the various Qgis >> > plugins? Formats need to accept floats. I only use one band. >> > >> > Thanks for the help. >> > >> > Nicolas Cadieux M.Sc. >> > Les Entreprises Archéotec inc. >> > 8548, rue Saint-Denis Montréal H2P 2H2 >> > Téléphone: 514.381.5112 Fax: 514.381.4995 >> > www.archeotec.ca >> > _______________________________________________ >> > Qgis-user mailing list >> > [email protected] >> > http://lists.osgeo.org/mailman/listinfo/qgis-user >> > >> > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
