What algorithm is behind matlabs bwmorph skel function?

Hi, I am trying to find the algorithm which is behind matlabs bwmorph skeleton function. is it done using opening and erosion or the distance transform?

Answer 1

[Steve Eddins]

bwmorph 'skel' uses the iterative thinning algorithm described on pages 170-171 of Haralick and Shapiro, Computer and Robot Vision, Volume I, Addison-Wesley, 1992.

[Xin Zhang]

Thank you very much.

Answer 2

[Image Analyst]

You'll probably find it on Steve's blog: http://www.mathworks.com/searchresults/?search_submit=blogs&query=skeleton&submitButtonName.x=0&submitButtonName.y=0&q=skeleton&c[]=blogs

[Benas S]

the search link seems to be broken, does anyone know what the algorithm is behind the matlab's bwmorph skel? Is it Blum's (1964) thinning algorithm ( http://remus.ulbsibiu.ro/teaching/courses/docs/acs/Skeleton-Algorithm.pdf )?

[Image Analyst]

Try this:

https://www.mathworks.com/search/site_search.html?q=skeleton&q1=skeleton&q2=&q3=&notq=&c%5B%5D=blogs

or this:

https://www.mathworks.com/matlabcentral/fileexchange/11123-better-skeletonization?s_tid=srchtitle

Answer 3

[Stephen Casey]

Thank you very much