[gdal-dev] Cropping raster by vector files

[michal_drozdz]

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!
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