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Re: Average outline of several contours [message #37103 is a reply to message #37021] Sun, 23 November 2003 12:19 Go to previous messageGo to previous message
Craig Markwardt is currently offline  Craig Markwardt
Messages: 1869
Registered: November 1996
Senior Member
Beat.Schmutz@flinders.edu.au (Beat Schmutz) writes:


>> Assuming the contours are roughly circular, you could do this:
>
> The contours are roughly circular for the shaft region of the bone but
> not for the ends (condyles). Sorry, I should have mentioned that in
> my original posting.

Personally, I think averaging in contour space is a problem. Contours
are sensitive to any little fluctuation in the underlying image. For
example, a noise fluctuation in a single pixel might produce small
extra contour loops.

Instead, I would say you should add the underlying images together,
and then find the master contour from the mean image.

Good luck!
Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@REMOVEcow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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