Hi Zoltan, Are you sure that the white you see is a pure 255/255/255? Albeit, the nearblack with its near default of 15 would have likely taken care of that.
If you load two othophotos in QGIS and specify the transparent pixels, does the collar between the orthophotos disappear? Regarding the warnings see: http://www.mail-archive.com/gdal-dev@lists.osgeo.org/msg06960.html -marius _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
