[OSM-talk] (magical?) road detector

Elizabeth Dodd edodd at billiau.net
Sat Feb 5 22:26:40 GMT 2011

> I will be very happy to hear of any complaints/requests/places where
> you think the detector should work but it fails/any other feedback.
> Thanks,
> Ido

I've made one attempt only at tracing a dirt road in dry country with
the detector. I found its usefulness less than zero, as the system told
me that too many tiles were involved and quit. Zooming in is not always
practical to spot these roads, where the pattern recognition is a very
long straight feature on a photograph, and same colour as the surrounds
for a dirt road in dry country, and a dark colour for a railway.
Having spotted the road then it is easier to find in zoomed images when
looking for curved bits through (dry) waterways.
I went back to doing it by hand, so for me it had a uselessness of less
than zero.

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