Hi, Once again someone wants to get the footprints of valid data in images http://gis.stackexchange.com/questions/216624/creating-a-shapefile-for-footprint-of-tasters-valid-data-areas-with-gdal.
A year ago, in here https://lists.osgeo.org/pipermail/gdal-dev/2015-October/042859.html Even suggested to create a mask-only image with gdal_translate in.tif mask.tif -b mask and then polygonize that into vectors with gdal_polygonize. I wonder how hard it would be to make gdal_polygonize to find the mask band directly and recognize it with "-b mask" just like gdal_translate does. -Jukka Rahkonen- _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
