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Running a laplacian filter on a point?

Posted on 2008-10-13
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Last Modified: 2016-02-10
Hi,

I've got the definition of a laplacian filter as:

    http://upload.wikimedia.org/math/c/6/5/c65dd028c1c9fb80a8288ca893e949da.png

I don't understand how I would do that in matlab - is it a combination of different functions like fspecial, or is there a direct laplacian function you use?

Thanks
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Question by:DJ_AM_Juicebox
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BigRat earned 500 total points
ID: 22710088
The Wiki link shows the traditional Laplacian, and I suppose one would use the corresponding function in MatLab :-

http://www.mathworks.com/products/matlab/demos.html?file=/products/demos/shipping/matlab/delsqdemo.html
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