Re: Application for 2D filters with filter length >40 in image processing

Do you have a specific question or do you just need a general
education? This is way too vague a question. It's kind of like going
to sci.physics and asking them to list applications where Newton's
laws of motion are used. As you might expect, there are thousands of
applications of filters and we can't list even a fraction of
applications where they are used. They're used for edge detectors,
noise removal, creating artwork, etc., etc., etc. Generally larger
filters process/find/filter/detect/eliminate larger features and
smaller filters do so on smaller features. Perhaps you can use
Photoshop or an image analysis program and try a bunch of filters to
see what they do. Photoshop has dozens of them with all kinds of
parameters (like size) and is pretty fast so you can get a good
education and intuitive feeling for how a lot of filters work. Some
are useful for image analysis, and others, like most in Photoshop, are
just for making interesting-looking pictures or artwork.
Regards,
ImageAnalyst

On Mar 3, 12:24 pm, "fulltime" <PiaoCh...@xxxxxxxxx> wrote:
Hi all,

Filters can be used in image processing for a variety of purposes. I
would like to find out what are the applications of 2D filters with
filter length >40x40 in image processing? How about a 2D filter with
small filter length?

Thanks
FT


.

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