基于opencv的数学形态学处理，包括腐蚀，膨胀，缩放，旋转等。-Opencv-based mathematical morphological processing, including corrosion, swelling, scaling, rotation and so on.

openCV 数学形态学图像开闭重构的算法演示，本函数均来自互联网，感谢原作者梁华的辛勤努力-morphological open close reconstruction