A fast thinning algorithm

Question

I\'m looking for a fast thinning algorithm that can be readily implemented using OpenCV. The mention of the library is because there are certain things that can be done in a

Answer 1

for the sake of completeness, I'm posting here a set of thinning algorithms implemented using OpenCV and C/C++ that I found out on the net while answering this question. These have adequately answered this question for my needs. Putting them here in case others have similar requirements.

1. OpenCV code for thinning (Guo and Hall algo, works with CvMat inputs)
2. The JR Parker implementation using OpenCV
3. Possibly more efficient code here (uses OpenCV optimized access methods a lot, however most of the page is in Japanese!)