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Looking for a solid implementation of despeckling and deskewing

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Ramon F Herrera

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May 24, 2008, 2:23:56 PM5/24/08
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Hello:

I am searching for implementations (with source code) of despeckling
and deskewing.

Preferably based on the OpenCV library. My targets are TIFF files.

If there is some algorithm or code somewhere, I am willing to port it
and/or implemented myself.

Any tips and pointers are much appreciated.

-RFH

john

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May 26, 2008, 2:04:08 PM5/26/08
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"Ramon F Herrera" <ra...@conexus.net> wrote in message
news:a0215504-93a7-469a...@x41g2000hsb.googlegroups.com...

> I am searching for implementations (with source code) of despeckling
> and deskewing.

You might want to look at ImageMagick. Among the very many Options
is -despeckle.

See: http://www.imagemagick.org/script/index.php, look at Architecture and
Options first to get an idea. Cruise the code. You know, the usual drill.

I use it less and less now that I've CS3 over OS-X with scripting. Enjoy.


Mike Russell

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May 26, 2008, 3:15:00 PM5/26/08
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> "Ramon F Herrera" <ra...@conexus.net> wrote in message
> news:a0215504-93a7-469a...@x41g2000hsb.googlegroups.com...
>
>> I am searching for implementations (with source code) of despeckling
>> and deskewing.

For despeckling, do a search for impulse filter, or median filter. For
deskewing, check out Alvy Ray Smith and Ed Catmull on two-pass
convolutions, specifically rotation which is implementd as a pair of skew
operations.

--
Mike Russell - http://www.curvemeister.com

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