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<font face="Times New Roman, Times, serif">Can anyone tell me wath
is happening here? I have a large three-band raster (3.8G) looking
like this:</font><br>
<br>
<font face="Times New Roman, Times, serif"><a class="moz-txt-link-freetext" href="http://mapserver.sara.nl/map2a.png">http://mapserver.sara.nl/map2a.png</a></font><br>
<br>
<font face="Times New Roman, Times, serif">I compress it (from
information from this list a few days ago) with:<br>
<br>
gdal_translate -co COMPRESS=JPEG -co PHOTOMETRIC=YCBCR big.tif
small.tif<br>
gdaladdo --config COMPRESS_OVERVIEW JPEG --config
PHOTOMETRIC_OVERVIEW YCBCR -ro -r gauss small.tif 2 4 8 16 32 64<br>
<br>
and get a file of 37M, which is nice. However, the map has all
kinds of rubbish at the borders. It looks like this:<br>
<br>
<a class="moz-txt-link-freetext" href="http://mapserver.sara.nl/map2b.png">http://mapserver.sara.nl/map2b.png</a><br>
<br>
The equivalent pictures of a small part of the map look like this:<br>
<br>
<a class="moz-txt-link-freetext" href="http://mapserver.sara.nl/map1a.png">http://mapserver.sara.nl/map1a.png</a><br>
<a class="moz-txt-link-freetext" href="http://mapserver.sara.nl/map1b.png">http://mapserver.sara.nl/map1b.png</a> <br>
<br>
Can anyone help me?<br>
<br>
Jan<br>
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