[Qgis-user] Quantifying Classification

Alejandro Chamizo de Castro alechamizo at gmail.com
Wed Feb 19 03:29:16 PST 2020


Hi Enock,


Quickly, I think that I would first reclassify the NDVI raster, based on
the class you deem appropriate, and then make a raster statistic.

If you know the size of the pixel, and the number of pixels that each class
has, you could calculate the area that each class occupies.

If you want something simpler, reclassify the raster, vectorize it and
calculate the surface of each class of the vector layer.





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19/02/20
12:28:27

El mié., 19 feb. 2020 a las 12:21, Enock Seth Nyamador (<enockseth at gmail.com>)
escribió:

> Hello QGISers,
>
> We are trying to quantify the amount of land in hectares per class of the
> attached [1].
>
> Any method you can recommend would be very helpful?
>
> 1. https://drive.google.com/file/d/17d2rywDhnBy3snRee2seaNLdWaCiIOr-/view
>
> Best,
> -ENock
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-- 
Alejandro Chamizo de Castro
+34 653681823
www.gisland.es
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