| Re: Mask ? [message #6842] |
Tue, 27 August 1996 00:00 |
Christian Soeller
Messages: 46
Registered: August 1996
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Member |
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Mario Noyon <mnoyon> writes:
>
> I want to mask the background of an image to have only the interesting
> signal.
> The procedure of ERODE doesn't seem to work.
First of all you have to come up with some idea how the "background" can
be distinguished from what you would regard as signal. Only after you have
characterized that you can proceed to choose from the variety of filters/
imaging processing techniques the most suitable ones. I would recommend
you have a look at some basic image processing textbook to get an idea of
what is possible and what isn't. A lot of different filters are already
availabe in plain IDL (see List_of_Routines_by_Application->Array_and_
Image_Processing_Routines) or can easily be implemented using IDL.
Hope this helps,
Christian
------------------------------------------------------------ --------
Christian Soeller mailto: csoelle@sghms.ac.uk
St. Georges Hospital Medical School Dept. of Pharmacology
Cranmer Terrace London SW17 0RE
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| Re: Mask ? [message #6850 is a reply to message #6842] |
Mon, 26 August 1996 00:00  |
Arno F. Granados
Messages: 8
Registered: August 1996
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Junior Member |
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Mario Noyon <mnoyon> wrote:
> I want to mask the background of an image to have only the interesting signal.
> The procedure of ERODE doesn't seem to work.
>
> Does someone have an idea?
>
I'm not clear on what you're trying to do. If you have an image and your
goal is to increase the Signal-to-Noise ratio, then it depends to large
extent on how the image was acquired. I might be able to help if you
could provide a little more information
Arno Granados
Positive Systems Inc "Leaders in Digital Aerial Photography"
granados@possys.com
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