how i can find these branching point

3 views (last 30 days)
mohammed alany
mohammed alany on 14 Apr 2019
Commented: mohammed alany on 15 Apr 2019
Hi all
Who i can find these four points?
Note: the extention of this image in matlab is logical
b.jpg

Answers (1)

Matt J
Matt J on 14 Apr 2019
Edited: Matt J on 14 Apr 2019
[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,
  6 Comments
mohammed alany
mohammed alany on 15 Apr 2019
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

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by