Brian Scamman writes:
> 
> Is there a way to increase the number of greyscale levels available to the
> display window?  Currently, I am able to only get six different levels.  I would
> like to get 256 levels if it is possible.
> 
r.colors map=mapname color=rules
will do the trick if your 'rules' file contains
0% 0 0 0
100% 256 256 256
if I'm not mistaken (I haven't tried it myself)


