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Re: Problems with ERODE and DILATE functions [message #73621 is a reply to message #73620]

Tue, 16 November 2010 07:27

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Oriol Güell Riera writes:

> I have a problem with the "erode" and "dilate" functions. I have a
> program which tracks ellipses, and it uses these functions to improve
> the images. However, if I try to run the program without using "erode"
> and "dilate", the program crashes, it can't keep tracking the ellipses
> (I have got a stack of images and the program stops tracking at some
> point of the tracking). I don't know why it happens because if I
> rewrite the functions to the routine, the program finishes the
> tracking. The main problem is that "erode" and "dilate" modify
> sometimes my images, they separate my ellipses sometimes, so I have to
> erase the "erode" and "dilate" functions from the prorgam. In
> principle, these functions should not interfere if I put them out of
> the routine, but actually they do.

Your program is not doing what you *think* it is doing
quite yet. I would spend some time reviewing all your
assumptions and making sure they are true. About 99
percent of the time when you "don't know why it happens",
it is because of programmer error. :-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Problems with ERODE and DILATE functions By: Oriol Güell Riera on Thu, 18 November 2010 00:55
		Re: Problems with ERODE and DILATE functions By: guillermo.castilla.ca on Wed, 17 November 2010 12:05
		Re: Problems with ERODE and DILATE functions By: Oriol Güell Riera on Tue, 16 November 2010 23:57
		Re: Problems with ERODE and DILATE functions By: James[2] on Tue, 16 November 2010 13:44
		Re: Problems with ERODE and DILATE functions By: Oriol Güell Riera on Tue, 16 November 2010 08:02
		Re: Problems with ERODE and DILATE functions By: David Fanning on Tue, 16 November 2010 07:56
		Re: Problems with ERODE and DILATE functions By: Oriol Güell Riera on Tue, 16 November 2010 07:38
		Re: Problems with ERODE and DILATE functions By: David Fanning on Tue, 16 November 2010 07:27

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