二值图像基本的形态学运算是腐蚀和膨胀，简单的腐蚀是消除物体的所有边界点的一种过程，其结果是使剩下的物体沿其周边比原物体小一个像素的面积。-two basic image morphology operations and the expansion of corrosion, Corrosion simple object is to eliminate all the border points of a process, The result is to make the remaining objects along its periphery objects smaller than one pixel size.