[Openstreetmap] Quote for IKONOS images

[Schuyler Erle]

* On  4-Dec-2004 at  4:09AM PST, Richard Fairhurst said:
> 
> I've always found manual tracing much, much easier than any automated 
> method. I experimented a little yesterday running Delineate (uses 
> autotrace to produce SVG) over some 1930s maps, but the results 
> required so much tidying up that it would have been simpler just to 
> trace the paths manually. Illustrator's auto-trace function is a 
> similar story.

I'll buy that. I think we should experiment with the Landsat-7 data,
and see what we can come up with, and then, having found techniques
that more or less work, we should consider raising funds to get some
IKONOS data to play with.

There's an image processing package called pymorph that looks
promising for automated feature extraction:

http://www.mmorph.com/pymorph/index.html

The airport runway extraction demo is particularly convincing:

http://www.mmorph.com/pymorph/morph/mmdemos/mmdairport.html

However, perhaps we can play with that GTk+ app that was posted here
earlier as well, and see which approach yields the most immediate
results. I plan to spend some time on this during the upcoming week.

SDE