I have a raster dataset that I'm trying to clip the background on. I've set the "display background value" to all 255s and it make some of the background disappear, but not all. When I clip on portions of the remaining background I get varying results like (248,249,247), (253,252,253), etc. I need to either change everything above 245 to 255 or change the background clipping so that the range it sees as background to a wider range.
Any help would be appreciated.