Carlos, This is easy in GRASS with r.recode.
The syntax would be... oldlow:oldhigh:0:255 I just did a new interface to r.recode in the GUI that should let you do this interactively. One problem, however, is that this depends on changes to r.recode made a couple days ago and it is not working correctly on my Mac. It may just need a recompile and I plan to test today. If there is still a problem, I'm sure it can be fixed and, in the meantime you can do it the original way (as described in the r.recode docs). Michael On 6/27/07 7:35 AM, "Carlos "Guâno" Grohmann" <[EMAIL PROTECTED]> wrote: > Any quick way to create 256 categories for a raster map? so I can rescale it > to 0-255? > > thanks __________________________________________ Michael Barton, Professor of Anthropology Director of Graduate Studies School of Human Evolution & Social Change Center for Social Dynamics & Complexity Arizona State University phone: 480-965-6213 fax: 480-965-7671 www: http://www.public.asu.edu/~cmbarton
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