Thanks Even So to be clear I am quite safe in assuming that Band 1 is R, Band 2 is G etc as the conversion has been done? Thanks Martin -- View this message in context: http://osgeo-org.1560.x6.nabble.com/NITF-YCbCr-To-RGB-tp5166169p5166257.html Sent from the GDAL - Dev mailing list archive at Nabble.com.