comp.lang.idl-pvwave archive: archive » Re: Erosion/Dilation Operators

Home » Public Forums » archive » Re: Erosion/Dilation Operators

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Erosion/Dilation Operators [message #8212 is a reply to message #8201]

Wed, 19 February 1997 00:00

Achim Hein
Messages: 42
Registered: February 1996

Member

Christian Soeller wrote:
>
>> These functions are a very fast way to clean up data due to special
>> expectation but think about the border of dilated/eroded areas - you
>> shift the border of the eroded area and so you can lost information you
>> are interested in.
>
> Not necessarily true.

???
In your opinion, you do not loose information if you erase values from
an array?

> You normally do an erosion (or several erosions) followed
> by the same number of dilations with the same structuring elements.

Normally means the way you use it?

> That will remove small areas and smooth boundaries of remaining areas >without shifting them too much.

And what is smoothing with respect to the frequency domain?
And where is the high frequency information after low-pass-filtering?

Sorry for the lesson like Mail but what about 'Not nessesarily true'

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
_______________________________________________

Report message to a moderator

[Message index]

		Re: Erosion/Dilation Operators By: Kirt Schaper on Wed, 19 February 1997 00:00
		Re: Erosion/Dilation Operators By: djackson on Wed, 19 February 1997 00:00
		Re: Erosion/Dilation Operators By: Christian Soeller on Wed, 19 February 1997 00:00
		Re: Erosion/Dilation Operators By: Achim Hein on Wed, 19 February 1997 00:00
		Re: Erosion/Dilation Operators By: Christian Soeller on Wed, 19 February 1997 00:00
		Re: Erosion/Dilation Operators By: Achim Hein on Tue, 18 February 1997 00:00

Previous Topic:	Re: solving alghorithm for gaus curves
Next Topic:	Re: write_mpeg.pro

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 08:15:26 PDT 2025

Total time taken to generate the page: 1.02944 seconds