[GRASS-user] [GRASS-dev] Object-based image classification in GRASS

Nikos Alexandris nik at nikosalexandris.net
Wed Feb 12 04:41:48 PST 2014

Salut GRASSers,

Moritz Lennert wrote:


> With all the elements in place, especially with Pietro's recent work, it
> should be quite easy to create a unifying module 'i.segment.classify'
> which would take as input
> - the segments coming out of i.segment
> - training zones
> - a choice of variables
> - a choice of classifier
> would then calculate the chosen variables, submit the results to the
> classifier and then update the segment map attribute table with the
> classification result. In other words a frontend combining v.to.db,
> v.rast.stats, v.class.ml and possibly some others.

As another alternative way, so as to stay in the Raster world, what do you 
think of simply using "r.statistics2"  and  providing an input  "cover=" map 
in order to derive segment-oriented statistics and use'm further, for example 
in an unsupervised classification scheme?


More information about the grass-user mailing list