图像处理中的膨胀腐蚀、开运算、闭运算，具有图形界面-The expansion of image processing corrosion, open operation, closing operation with a graphical interface

使用MFC创建单文档程序，在界面上画圆，单击可使圆放大、变色-MFC SDI DRAW CIRCLE, CLICK TO INFLATE THE CIRCLE AND CHANGE ITS COLOR