Tagged Questions

6
votes
1answer
860 views

Open software tool or QGIS plug-in to make land cover classification

Is there any tool or plugin for QGIS/GRASS to make an automatic land cover classification from satellite imagery - based on CLC nomenclature for example? Of course, it will not be 100% sure but it ...
2
votes
2answers
734 views

How to vectorize a Raster-Classification? (qgis, grass)

I classified my raster-DHM into elevation levels using colormap. Its not a "real" classification, just a colormap. So I cant vectorize the classes to get polygones for every class. Whats the best ...
2
votes
2answers
492 views

How to classify/style rasters correctly?

I am using a GeoTiff raster data and trying to classify it. I was wondering what are the techniques that I can use in QGIS to do this? The raster I have looks like but I tried the reclassify tool ...
0
votes
0answers
22 views

how separate Mixed classes

I am trying to deal with the aggregate data in Africover, I want to separate for example the mixed class – In North Kurdufan if I want the 6R from 2H/6R what is the a correct equation I have to write ...