A kind of simple but effective thinning algorithm is also proposed in this paper, it assure strictly that thinned lines be in the centre of ridge lines, and the whole image be thinned thoroughly, without any burr and twist.

• 在二值化图像的细化处理中，本文提出了一种简单、有效的细化算法，严格地保证了细化线位于纹线的中心，且细化彻底，没有毛刺和纹线扭曲的现象。