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how i can find these branching point

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mohammed alany
mohammed alany 2019-4-14
评论： mohammed alany 2019-4-15
Hi all
Who i can find these four points?
Note: the extention of this image in matlab is logical
b.jpg

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回答（1 个）

Matt J
Matt J 2019-4-14
编辑：Matt J 2019-4-14
[I,J] = find(binaryimg<max(binaryimg(:))/2);
IJ = [I,J];
[~,idx] = min(IJ*[1 1; -1 1; 1 -1; -1 -1].');
Corners = IJ(idx,:);
For some elaboration on why this works, see this thread,
https://www.mathworks.com/matlabcentral/answers/413079-i-am-trying-to-find-the-corners-of-the-rectangular-shapes-this-code-is-working-very-well-but-i-d
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Matt J
Matt J 2019-4-15
That wouldn't leave any fun for you ;)
mohammed alany
mohammed alany 2019-4-15
ok, can you give more help about what you say above? "Then I would use houghlines to find all sides of the remaining polygon and their end points"
because i dono't have engough information in matlab,
Thank you

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