Thanks for your explanation Marcus. It was very useful for better understanding results of my segmentation.
Giuseppe 2018-05-08 8:22 GMT+02:00 Markus Metz <[email protected]>: > > > On Mon, May 7, 2018 at 4:03 PM, Giuseppe Esposito <[email protected]> > wrote: > > > > Dear GRASS GIS experts, > > > > I’m approaching segmentation in GRASS GIS and some doubts arised when > reading the manual of the i.segment module (https://grass.osgeo.org/ > grass74/manuals/i.segment.html). For this reason, I would like to ask if > someone may provide me further explanations about the following point. > > > > I understood that the mean shift image segmentation consists of 2 steps: > anisotrophic filtering and clustering. It is non immediatelly clear to me > how the second step (clustering) is working and I can't find help from the > manual. I am not understanding how this process is performed in the > i.segment module, as well as if I can set it somehow. Do someone can help > me with some explanation or reference about the clustering process in > i.segment? > > The clustering is the same like in r.clump: it identifies connected > components by grouping neighboring cells together that are similar to each > other with regard to hr (spectral bandwidth). Each group of cells becomes > an object in the final output. > > Markus M > > > > > Thanks in advance for your help. > > > > Giuseppe Esposito > > > > > > > > _______________________________________________ > > grass-user mailing list > > [email protected] > > https://lists.osgeo.org/mailman/listinfo/grass-user > >
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