Gray-scale thinning by using a pseudo-distance map
A. Nedzved, Sergey Ablameyko, Seiichi Uchida · 2006
In this paper, the algorithm for thinning of greyscale images is proposed that is based on a pseudodistance map (PDM). The PDM is a simplified distance map of gray-scale image and uses only that features of image and objects that are necessary to build a skeleton. The algorithm works fast for large gray-scale images and allows constructing a high quality skeleton.