How to get Adjacent matrix?

Question

Mariam Sheha 2013-7-4

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https://ww2.mathworks.cn/matlabcentral/answers/81116-how-to-get-adjacent-matrix

评论： Gayathri Nayar 2019-5-22

Hi every body;

I am trying to graph my binary 'labeled' image through (gplot) function, but to do such implementation i have to convert my binary matrix to adjacent matrix and get it's coordinates...

I don't know to make such operations?!

Labeled image ex: http://imageshack.us/content_round.php?page=done&id=4tHclKSnlaGrmqmS36ef26fU48o

the function: gplot(A,Coordinates)

Can any one help me through that, Please

Thank you;

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Answer 1

Matt J 2013-7-4

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https://ww2.mathworks.cn/matlabcentral/answers/81116-how-to-get-adjacent-matrix#answer_90833

在 MATLAB Online 中打开

Isn't your binary matrix (let's call it A) already an adjacency matrix? If so, you should be able to do as below. If not, what does A represent?

 [i,j]=find(A);
  gplot(A,[i,j]);

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Gayathri Nayar 2019-5-22

But it plots line between every point in the matrix where there may not be a connection in the image. I mean to say that , in the image 2 points may not be connected using a straight line but can be connected using a curved line. then this code doesnot work the same

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