[GRASS-dev] i.segment: Invalid region id -1

Nikos Alexandris nik at nikosalexandris.net
Mon Dec 2 16:05:03 PST 2013

Nikos Alexandris wrote:

> I've tested this with at least three different similar cases. All work fine
> without the seed map! All fail with a seed map supplied. I guess, the only
> real difference is time for the processes to complete, right?
OK, I've just discovered that I mixed 8-bit (the Pan images) for the seed map 
and 16-bit (the Multi-Spectral images).  So, seed -> 8-bit, group to be 
segmented -> 16-bit. Does this play a role?

Thank you, Nikos

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