[GRASS-user] Gauss filter in r.neighbors
Martin Album Ytre-Eide
Martin.Album.Ytre-Eide at nrpa.no
Thu Oct 2 03:44:55 PDT 2014
I am using the the r.neighbors function and I have an idea about what the 'Gauss' parameter will do for me, but I can't find any documentation for it. Experimenting with it, left me clueless.
What I won't to do:
Apply a Gaussian weighting of cell neighbors and sum the values of the neighbors. If all cells=1, I would get only 1's back. I have a map of zeros and ones. I tried this:
r.neighbors -c input='input_map' output='output_map' method=sum gauss=10 size=33
The result is a map with only zeros. So, my question is: What does 'gauss' do? I' am guessing I am using it wrong but I would like to know.
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