[Image-SIG] Bacterial Colonies

jcupitt at gmail.com jcupitt at gmail.com
Sun Dec 27 18:34:07 CET 2009


2009/12/23 Adrian Price-Whelan <adrian.prw at gmail.com>:
> I've thought a bit about different ways to approach the following problem,
> but I can't come up with a solid way to count the 'spokes' that come out
> from the center. Thanks in advance for any help!

How about a variation on the hough transform?

http://en.wikipedia.org/wiki/Hough_transform

You should be able to get your radial lines to appear as a line of
spots, I think, which should be easy to count. I don't know if PIL can
easily do a Hough transform, but I'm sure Numpy could.

John


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