[GRASS-user] reduce cells around the perimeters of all areas

Markus Neteler neteler at itc.it
Thu Jun 28 09:26:32 EDT 2007


pierluigi de rosa wrote on 06/27/2007 01:06 PM:
> Dear All,
>
> I need to reduce the area in a raster map. I should do something similar to 
> the opposite of r.grow. I tried a method combinig r.null and  r.neighbors 
> (option minimum) but maybe it exist a better way to do this.
> Any Ideas
> Thanks
>   
Pierluigi,

there was some discussion about it:
http://www.nabble.com/r.shrink---tf2148082.html#a5936329
"r.shrink"

Maybe it helps (did't read it again),
Markus

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ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler
ITC -> since 1 March 2007 Fondazione Bruno Kessler
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