拐角探测 notebook Dilation and Erosion 膨胀和腐蚀 将白色区域,沿着边进行膨胀和缩小, 2018-08-10 17-03-28屏幕截图.png 腐蚀+膨胀=开口 openIng ![2018-08-10 17-15-50屏幕截图.png](https://upload-images.jianshu.io/upload_images/9755241-f8781596bf0d54c2.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 膨胀+腐蚀=闭口 closIng 2018-08-10 17-15-50屏幕截图.png