How to convert binary image to graph?

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Mariam Sheha 2013-6-30

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采纳的回答： Kevin

Hi everybody,

Can you please help me to convert binary image results from _Laplacian of Gaussian (LOG) filter._ to graph?!

I don't know how to perform like such operation;

Thanks A lot.....

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Kevin 2013-7-2

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So this is a Laplacian matrix? I suggest you decompose this: L=D-A, where D is the degree matrix and A is the adjacency matrix. Then use gplot, which graphs a adjacency matrix as a set of coordinates in a plane.

"help gplot" is your friend

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Kevin 2013-7-3

It's easy to get L if you have A, but I don't think you can recover L from D. D is a diagonal matrix that has as the ith entry, the sum of the ith row of A.

Mariam Sheha 2013-7-3

what i had now is a binary image results from gaussian filter (as attached), do you know how to convert like such matrix to adjacency matrix??!! http://imageshack.us/content_round.php?page=done&l=img163/9633/j1m.png

Thanks in advance

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