[GRASS-dev] Object-based classification [was: Re: i.segment: invalid region id 0]

[Nikos Alexandris]

Moritz Lennert wrote:
> FYI, here's a list of variables that colleagues established here as
> being the ones they use most in objet-based classification:
> 
> - mean band values
> - brightness (combination of several band values)
> - standard deviation of a certain band within an object
> - length/width ratio of an object
> - GLCM Homogeneity (Haralick)

Being an "old" e-cognition user (I think it's almost 6-7 years ago) I remember 
using Vegetation Indices as well, wherever applicable. Weighting some bands, 
e.g. the NIR band, when the final classification-objective was related to 
related, was also not uncommon.

Nikos