[SoC] Image Segmentation - GRASS - GSoC report #6

[Eric Momsen]

Hi,

As I suspected, I planned too much for the week.  Progress was made in 2 of
the 3 tasks:

* Updated storage technique for some of the processing flags and
information.  Big speed improvement, but still further gains are needed.

* Validation: No strict/formal validation was completed.   But the visual
results are getting better, and also I checked the original pixel values
against the mean of the segment they are assigned to, the distribution
appeared reasonable.

Plan for next week:

* Add a final iteration to force small segments (below user input size) to
merge.
* Try a few more changes to find speed improvements.

Blocking:
Company visiting this week :)   Performance (speed) is still the biggest
challenge, but we keep finding more options to speed things up.

Regards,
Eric
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