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RADON: user-specified angular range possible? [message #39633]

Thu, 03 June 2004 02:40

Chris[1]
Messages: 23
Registered: January 2003

Junior Member

To whoever may have used IDL's RADON function before:

I am using the (forward) Radon transform to detect the orientation angle
of features in radiographs. Since I know the approximate value of the
angle beforehand, I need the transform only in a very limited range of
angles. Calculating the entire range [0, pi], as RADON does by default, is
a mere waste of time.

Hence my question: Does the RADON function allow the user to specify any
other angular range than [0, pi]? From the documentation and a futile
attempt using the THETA keyword, I think it doesn't. But I sure would
appreciate if someone could tell me that I'm wrong.

Thanks
Timm

--
Timm Weitkamp <http://people.web.psi.ch/weitkamp>

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