Moritz, On Wed, Oct 29, 2014 at 4:51 PM, Moritz Lennert < [email protected]> wrote:
> >> > Have you tried integrating variables concerning shape and size (cf some of > the v.to.db variables), texture (r.texture - unfortunately GRASS does not > propose texture measures for arbitrary polygons, but only for fixed-size > windows around pixels, but you can use average texture measures within your > segmentation polygons). > > You should probably check Pietro's v.class.ml in addons [1]. You can also > look at the sample script I sent to the grass-users list a while ago [2]. > > Just brainstorming here: maybe the r.li.* modules can be (ab)used for such > as task ? > > > [1] https://trac.osgeo.org/grass/browser/grass-addons/grass7/ > vector/v.class.ml > [2] http://lists.osgeo.org/pipermail/grass-user/2013-October/069189.html > Fantastic! Thank you for all your precious hints! I'll let you know how it goes. Also, kudos to Pietro for his v.class.ml (he should advertise more his marvellous tools), that implements shikit [3], I was just reading this example of application [4] and looks promising for my case.. Thank you! [3] http://scikit-learn.org/ [4] http://blog.remotesensing.io/2014/04/counting-atolls-of-the-maldives/#more -- Best regards, Dr. Margherita DI LEO Scientific / technical project officer European Commission - DG JRC Institute for Environment and Sustainability (IES) Via Fermi, 2749 I-21027 Ispra (VA) - Italy - TP 261 Tel. +39 0332 78 3600 [email protected] Disclaimer: The views expressed are purely those of the writer and may not in any circumstance be regarded as stating an official position of the European Commission.
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