| Erosion/Dilation Operators [message #8225] |
Mon, 17 February 1997 00:00  |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Hi,
Does anyone have any practical experience using the erosion
and dilation operators in IDL? I can't make much sense of the
documentation. In particular, I can't figure out what a good
structuring element would be.
I am working with ice flow data. I want to calculate the
size of the ice flows, but first I have to pick them out.
I've fooled around with thresholding, edge operators, etc.,
but in the end the data is still "messy", without clearly
defined boundaries, or with small "artifact" ice flows
inside the larger, definate ice flows. I thought erosion
and dilation would be a good way to clean up the data,
but I can't see how it works exactly.
I would appreciate any and all suggestions.
Thanks,
David
-----------------------------------------------------------
David Fanning, Ph.D.
Fanning Software Consulting
2642 Bradbury Court, Fort Collins, CO 80521
Phone: 970-221-0438 Fax: 970-221-4762
E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com
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| Re: Erosion/Dilation Operators [message #8286 is a reply to message #8225] |
Thu, 20 February 1997 00:00  |
Achim Hein
Messages: 42
Registered: February 1996
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Member |
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Christian Soeller wrote:
>
> First of all, let me point out that I am surprised by the agressive >style of your response to my followup (please point out to me what >offended you in my posting).
Let me say there were mysterious glasses, which changed the written 'not
nessesarily true' to 'what a stupid bull...'.
I do not know who fixed these glasses in front of my monitor but - truly
not you.
You are right - that is not the way we should talk with each other.
I am sorry.
Cheers,
Achim
--
_______________________________________________
Dipl.-Ing. A. Hein
PB2 / ZESS - Uni-GH-Siegen
Paul-Bonatz Str. 9-11
57068 Siegen
Phone: 0271/740-3362
Fax: 0271/740-2336
_______________________________________________
Please have a look at our Web-Sites:
http://www.nv.et-inf.uni-siegen.de/pb2/www_pb2
_______________________________________________
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