[GRASS-dev] i.segment gives different results in G72 and G73

[Markus Metz]

On Mon, Dec 5, 2016 at 1:36 PM, Martin Landa <landa.martin at gmail.com> wrote:
>
> Hi,
>
> 2016-12-05 8:54 GMT+01:00 Markus Metz <markus.metz.giswork at gmail.com>:
>
> > Both versions use the same method by default. However, the G73 version
of
> > region growing in i.segment has been modified, it is now faster for
larger
> > objects (larger thresholds). A side effect is that objects might differ
> > slightly between G72 and G73, but both results are correct in terms of
the
> > concept of region growing. The reason for the difference is when
finding the
> > most similar neighbor region, there can be several equally best
neighbors.
> > Which one is selected is more or less chance, to be precise, the order
of
> > visiting the neighbors, and this order of visiting changed.
>
> thanks for clarification. Could be probably good idea to explain it
> also in manual pages. Can we take this paragraph as it is? Thanks,
> Martin

It's very technical and explains differences between versions. I am not
sure if this should go into the user manual. The concept of region growing
is the same.

Markus M
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