Michal, I am assuming that by collar you mean border. WIth gdalwarp, you can set a nodata value using the -dstnodata option or set an alpha band using the -dstalpha option.
On Fri, Jul 9, 2010 at 2:36 AM, michal_drozdz <michu...@wp.pl> wrote: > > Hi! I have a beginers problem. > > How to crop collar from scanned map with GDAL? > I have set of georeferenced topo maps and polygon layer with boundaries of > each sheet. I used gdalwarp with -cutline and -cl parameters and it worked > but as a result I got map with 0 value at the place of collars. So when I > upload maps into QGIS I still have a problem with overlaping collars. How > to > remove it "forever":) > > Thanks for replys! > -- > View this message in context: > http://osgeo-org.1803224.n2.nabble.com/Cropping-raster-by-vector-files-tp5271977p5271977.html > Sent from the GDAL - Dev mailing list archive at Nabble.com. > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > -- Best regards, Chaitanya kumar CH. /tʃaɪθənjə/ /kʊmɑr/ +91-9494447584 17.2416N 80.1426E
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