Its just how compression works. If some data is reduced in size then
other has to grow in size. Try -co compress=deflate -co PREDICTOR=2
On 2011-06-15 19:43, Matt Wilkie wrote:
Hi Folks,
I've run into a strange thing, "gdal_translate -co compress=lzw" is
creating files that are larger than the source uncompressed image.
Input:
04/04/2006 08:39 AM 959,236,993 A1.tif
Results of "gdal_translate -co compress=[lzw,packbits,none]"
15/06/2011 10:35 AM 1,003,987,364 _lzw.tif
15/06/2011 10:31 AM 958,908,507 _none.tif
15/06/2011 10:30 AM 965,940,411 _packbits.tif
gdalinfo report is attached.
source file at http://files.environmentyukon.ca/matt/gdal-trans-lzw/ (in
about 20 minutes).
GDAL 1.8.0, released 2011/01/12
what's up?
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/gdal-dev
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/gdal-dev
