In addition, morphology analysis method of the dual value image is also discussed and the practical and improved operations of the four morphological image processing such as electric filter design, marginal pattern testing, skeleton withdrawal and image reconstruction are introduced. 在文章中,我们还讨论了二值图象的形态分析算法,接着引入了形态滤波器设计、边缘形态检测、骨架抽取、图象重建四种形态学图像处理的实用算法及其改进算法。