Dear Grass users, I'm working with rasters maps of large area and I want to calculate surface related to specific colours. Before this, I have to replace the surfaces of the rivers by the surrounding value (or the mean of the surrounding value).
I looked at the manual of r.mapcalc but I didn't found how to do this... For instance, I want to replace all value between 4 and 7 by the mean of the value of the 4 nearest pixels. Is there any way of doing this? Which command shall I use then for calculating the surface for each color? r.stats? or is there a command that directly computes the surface? Best regards Lucien _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
