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Re: An algorithm puzzle [message #60916 is a reply to message #60785]

Sun, 15 June 2008 20:13

Y.T.
Messages: 25
Registered: December 2004

Junior Member

On Jun 14, 3:48 am, Jelle <p...@bio-vision.nl> wrote:
> David: That is not really fair: I am in the wrong timezone for a 10
> sec reply. Anyway.. Size would be european XL, probably a US L?
>
> I think this should do it:
> d = MORPH_DISTANCE(P)
>
> (Or, if I have my foreground / background wrong)
> d = MORPH_DISTANCE(P, /background)
>
> You will have to decide how distance is calculated using the
> NEIGHBOR_SAMPLING keyword, I think you are after 3, which is
> approximate euclidian distance.
> d = MORPH_DISTANCE(P, neighbor_sampling=3)

Wow - I'm looking for a clever solution and IDL has a built-in. Which
uses a second or something instead of the hour or so I'd been
struggling with.

Thanks for that - the whole group of "morph_" stuff was completely
unknown to me.

(Either of the three neighborhood definitions are probably fine - for
the kinda coarse stuff I've been doing I don't see much difference
between them. I'm going with 3 for now but 1 was giving me perfectly
fine results earlier..)

Thanks again...

Y.T.

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[Message index]

		Re: An algorithm puzzle By: David Fanning on Sat, 14 June 2008 10:36
		Re: An algorithm puzzle By: Jelle on Sat, 14 June 2008 03:54
		Re: An algorithm puzzle By: Jelle on Sat, 14 June 2008 03:48
		Re: An algorithm puzzle By: Jonathan Dursi on Fri, 13 June 2008 23:09
		Re: An algorithm puzzle By: David Fanning on Fri, 13 June 2008 21:09
		Re: An algorithm puzzle By: Y.T. on Sun, 15 June 2008 20:13

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