Hi Jan,
You can cut result raster with the geometry (shape file) using gdalwarp
with cutline option (http://gdal.org/gdalwarp.html).
Best regards,
Dmitry
27.12.2012 16:38, Jan Hartmann ?????:
Can anyone tell me wath is happening here? I have a large three-band
raster (3.8G) looking like this:
http://mapserver.sara.nl/map2a.png
I compress it (from information from this list a few days ago) with:
gdal_translate -co COMPRESS=JPEG -co PHOTOMETRIC=YCBCR big.tif small.tif
gdaladdo --config COMPRESS_OVERVIEW JPEG --config PHOTOMETRIC_OVERVIEW
YCBCR -ro -r gauss small.tif 2 4 8 16 32 64
and get a file of 37M, which is nice. However, the map has all kinds
of rubbish at the borders. It looks like this:
http://mapserver.sara.nl/map2b.png
The equivalent pictures of a small part of the map look like this:
http://mapserver.sara.nl/map1a.png
http://mapserver.sara.nl/map1b.png
Can anyone help me?
Jan
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