matlab - Finding the Angle of Intersection of elements from two images -

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i trying analyze intersection points between 2 skeletonized, binary images.

(an example of 2 images need compared linked here: http://tinypic.com/view.php?pic=2itrjix&s=8#.vywmewa-cho , http://tinypic.com/view.php?pic=2mhix38&s=8#.vywmbwa-cho)

using imagej can find intersect points are.

however, need in matlab find these 2 images intersect , find out @ angle intersect.

there many intersection points on each image can't "manual" process each intersection.

once know angle of intersection need able sort intersection points based on calculated angle.

any appreciated! thanks!


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