Thanks, that has worked and can visualise through OpenJump. The Raster it produces (below), has only values of zero or one in its attributes. I'm assuming in the calculation its not keeping the values as Floats but its converting it to integer? Must be rounding them to either zero or one. Is there a way to solve this i.e. keep the pixels as floating integers? http://postgis.17.n6.nabble.com/file/n4832782/ndvi.jpg
Kind Regards, James ----- GIS Undergraduate -- View this message in context: http://postgis.17.n6.nabble.com/NDVI-Calculation-from-two-bands-within-one-Raster-tp4656995p4832782.html Sent from the PostGIS - User mailing list archive at Nabble.com. _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users