When use the nearblack tool I get: ERROR 1: Writing through VRTSourcedRasterBand is not supported. -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Changing-pixel-values-of-GDAL-VRT-tp5241432p5244066.html Sent from the GDAL - Dev mailing list archive at Nabble.com.