腐蚀和膨胀是数学形态学最基本的变换，数学形态学的应用几乎覆盖了图像处理的所有领域，给出利用数学形态学对图像处理的一些运算。  -Corrosion and expansion is the most basic mathematical morphology transformation, the application of mathematical morphology is almost covered all areas of the image processing, is g