Thanks Moritz, r.recode did exactly what I needed.
much appreciated Wes >>> Moritz Lennert <mlenn...@club.worldonline.be> 02/23/09 1:02 PM >>> On 23/02/09 11:16, Wesley Roberts wrote: > Dear list. > > I have a raster file with values coded in 8 bit grey scale 0-255. I > would like to invert the raster values so that 255 is now 0 and 0 is > now 255. I have not found an out of the box solution in grass but > have tried the r.reclass function. How about r.recode with a rule such as: old_low:old_high:new_low:new_high 0:255:255:0 ? > I generated a reclass rule file > but am not sure about the form of the file. You need a '=', so 0=255 1=254 etc Moritz -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
