c/c++---之opencv如何用opencv求IOU_c++ opencv 计算iou

float bbOverlap(const BoundingBox& box1,const BoundingBox& box2)
{
  if (box1.x > box2.x+box2.width) { return 0.0; }
  if (box1.y > box2.y+box2.height) { return 0.0; }
  if (box1.x+box1.width < box2.x) { return 0.0; }
  if (box1.y+box1.height < box2.y) { return 0.0; }
  float colInt =  min(box1.x+box1.width,box2.x+box2.width) - max(box1.x, box2.x);
  float rowInt =  min(box1.y+box1.height,box2.y+box2.height) - max(box1.y,box2.y);
  float intersection = colInt * rowInt;
  float area1 = box1.width*box1.height;
  float area2 = box2.width*box2.height;
  return intersection / (area1 + area2 - intersection);
}
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作者：Belial_2010 
来源：CSDN 
原文：https://blog.csdn.net/kezunhai/article/details/8830882 
版权声明：本文为博主原创文章，转载请附上博文链接！

其中box1,和box2可以用opencv中的Rect2d类。