[GRASS-user] how to tweak the parameters to speed up i.segment

Margherita Di Leo diregola at gmail.com
Fri Sep 26 06:18:04 PDT 2014

Ciao Pietro!

On Fri, Sep 26, 2014 at 2:49 PM, Pietro <peter.zamb at gmail.com> wrote:

> Following this approach I've implement: i.segment.hierarchical
> (grass-addons). I've used this module to segment an image (RGB) of 24
> x 48 kpixels on my laptop in less than 12 hours (if I remeber
> correctly). Still I think we can reach greater improvement working at
> C level but I didn't have time to work on it I have just some ideas,
> no code.
> kudos! :-D
I have some troubles installing it though:

> g.extension i.segment.hierarchical
Fetching <i.segment.hierarchical> from GRASS-Addons SVN repository (be
Makefile:17: warning: overriding commands for target
warning: ignoring old commands for target
Traceback (most recent call last):
line 158, in <module>
    from isegpatch import rpatch_map
ImportError: No module named isegpatch
make: *** [i.segment.hierarchical.tmp.html] Error 1
ERROR: Compilation failed, sorry. Please check above error messages.



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
margherita.di-leo at jrc.ec.europa.eu

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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