[GRASS-user] 'Growing' a raster on the edges only (Paulo van Breugel)

GRASS GRASS user
1

Thanks Paulo, your suggestion of combining r.neigbors and r.patch worked.

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From: Paulo van Breugel <p.vanbreugel@gmail.com>
Subject: Re: [GRASS-user] ‘Growing’ a raster on the edges only
Message-ID: <516BA41A.4060303@gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed

Try r.neighbors function with the mean or medium neighborhood
operation, or, if you are working with categorical values, use the
‘mode’ neighborhood operation. You can combine the result with the
original layer using r.patch so only the no-data cells at the borders
are filled with the newly created values

You may also have a look at r.fillnulls, which fills in no-data cells
using spline interpolation.

Paulo