Could be the presence of a MASK causing r.texture to complain "Negative or no data pixel found..."? This is not described in the doc... and our raster map does not have any null value.
Anyway, this is not the way it should be in grass, as the MASK is supposed to prevent any program to process the null part of the raster. Am I wrong? I think that there is no other solution (again) than modifying the code so that those elements in the null part of the MASK are not counted for the co-occurrence matrix. Setting null cells in the MASK as 0 in the raster is not a good option, as windows close to the border of the non-0 values will be including 0 and thus producing spurious results. Has anyone done any work in this direction? Agus
begin:vcard fn:Agustin Lobo n:Lobo;Agustin org:Institut de Ciencies de la Terra "Jaume Almera" CSIC adr:;;Lluis Sole Sabris s/n;Barcelona;;08028;Spain email;internet:[email protected] url:http://www.ija.csic.es/gt/obster version:2.1 end:vcard
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