[Gvsig_english] Raster tool for cell counting

[Antonio Falciano]

Il 24/02/2010 14.06, Nicolas DEVAUX ha scritto:
> Antonio Falciano a écrit :
>> Il 24/02/2010 11.56, Nicolas DEVAUX ha scritto:
>>
>>> gvSIG 1.9 Sextante 0.3-1232 Ubuntu 9.10
>>>
>>> Hi, I have a bolean reclassified raster layer with 0 and 1 values
>>> cells. I'm looking for a tool that count the total number of each
>>> value cell in the raster layer. I tried the function Sort with
>>> sextante but it didn't work... Do i need a specific raster format for
>>> doing this ?
>>>
>>> Does anybody have an idea ?
>>>
>>
>> Hi Nicolas,
>> you can use the histogram tool in gvSIG [1] on your before reclassified
>> raster layer, without the need to change its format. Hope this helps!
>>
>> Cheers,
>> Antonio
>>
>> [1]
>> https://gvsig.org/web/docusr/new-functionalities-gvsig-1-9/raster/funcionalidades-de-capa/histograma/descripcion
>>
>>
> I already tried this solution.
> It can work with very few values raster layer, but how do you do if you
> have 20 or 30 different values ?
> I tried to export the statistics, but the resulting table gave me the
> rank order of the different cells values and not the exact cell value
> that I have in each cell...
> I would like to have something like in other GIS softwares that can
> count all pixels associate with such or such other values...

Nico,
have you already tried "Class statistics" tool available into "Raster 
categories
analysis" group in SEXTANTE?

Cheers,
Antonio

-- 
Antonio Falciano
http://www.linkedin.com/in/antoniofalciano