OpenCV

TrackBar参考：

https://blog.csdn.net/codedoctor/article/details/74781683?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-1.no_search_link&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-1.no_search_link

膨胀操作

int structElementSize=2;
Mat element=getStructuringElement(
  MORPH_RECT,
  Size(2*structElementSize+1,2*structElementSize+1),
  Point(structElementSize,structElementSize)
);
dilate(midImage2,midImage2,element);