Currently I am implementing the zhang-suen method but my images are 300 ppi and it takes a couple of minutes. Can someone point me in the right direction. I need the skeleton to be connected and there are parallel lines so the the algorithm I've seen in python that uses open and closing is not good. Thanks
zhang-suen thinning is implemented in opencv_contrib
downside is: if you want to use it, you will have to rebuild your cv2.so with opencv3 and opencv_contrib
A good example of Skeletonization using OpenCV-Python is in https://stackoverflow.com/questions/3...
You don't have to rebuild to use it. You can simply pip install contrib with: pip install opencv-contrib-python.
Then you can simply use zhang-suen thinning implementation like this:
image = cv2.imread("opencv.png")
thinned = cv2.ximgproc.thinning(cv2.cvtColor(image, cv2.COLOR_RGB2GRAY))
If you plot the image before and after you get something like this:
Asked: 2017-07-03 11:29:16 -0600
Seen: 24,040 times
Last updated: Jul 03 '17