On 11/06/20 13:36, mbrauch...@posteo.de wrote:
Thank you for the explanation! I assumed gsoc version is build upon
i.segment.
Is there any way to include the shape parameters in i.segment? I am very
fond of the gsoc version as it helps surpress segments growing to very
complex geometries (shadows through the forest patches for example).
There was some reasons why the shape parameters were not integrated in
i.segment, but I can't remember why. Some code is actually there, but
currently it is not used.
MarkusM, do you remember ? And how complicated would it be to integrate
them ?
Moritz
Kind regards,
Melanie
On Jun 11, 2020 12:52 PM, Moritz Lennert <mlenn...@club.worldonline.be>
wrote:
i.segment.gsoc is the original version developed during GSoC.
i.segment is ann optimized version that was originally based on the
GSoC work, but has known different developments since, including in
the way the threshold parameter is applied.
I would recommend using i.segment.
Moritz
Am 10. Juni 2020 13:13:33 MESZ schrieb mbrauch...@posteo.de:
>Hello list,
>I am working on segmentation of aerial imagery in forest areas and
have
>
>used both modules (i.segment and i.segment.gsoc) for some
experiments.
>When running i.segment and i.segment.gsoc with radioweight = 1 on the
>same dataset with a threshold of 0.3, I assumed the output should be
>similar, but it isn't.
>In the manual of i.segment.gsoc it is stated that the threshold
will be
>
>multiplied by the number of rasters in the image group, so I tried a
>threshold of 0.1 in i.segment.gsoc vs a threshold of 0.3 in i.segment
>as
>I have 3 rasters in my image group. Although the results are now more
>similar, they still vary a lot.
>I have attached the images to show the derived segments from
i.segment
>0.3 and i.segment.gsoc 0.1. Can someone help me to understand why
this
>is happening? I would appreciate it.
>Kind regards,
>Melanie Brauchler
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