轮廓和矩形OPENcv c之间的交点

std::vector<cv::Point> shape; // computed with FindContours
cv::rect myRect; //whatever

const int nUMPOINTS = 2;
int found = 0;
for(std::vector<cv::Point>::iterator it = shape.begin(); it != shapes.end() && found < NUMPOINTS; ++it) {
  if (it->y == myRect.y && it->x >= myRect.x && it->x < myRect.x + width)
    // that point cross the top line of the rectangle
    found++; // you might want to store the point
  else if (// ... add the other checks herE)

}