#include  #include  #include   using namespace cv; using namespace std; int main() {     Mat Img = Mat(500, 500, CV_8UC1, cv::Scalar(0));     Mat image = Mat(500, 500, CV_8UC1, cv::Scalar(50));     Point A = Point(150, 150);     Point B = Point(280, 280);     LineIterator line_iter(image, A, B);     vector v_pnts;     v_pnts.reserve(line_iter.count + 2);     for (int i = 0; i < line_iter.count; ++i, ++line_iter)     {         v_pnts.emplace_back(line_iter.pos());     }     v_pnts.emplace_back(A);     v_pnts.emplace_back(B);      for (int i = 0; i < v_pnts.size(); i++)     {         Img.at(v_pnts[i]) = 255;     }           imshow("image_color123", Img);     Mat image_color = image.clone();        cvtColor(image_color, image_color, CV_GRAY2BGR);     for (const auto& kn : v_pnts)     {         image_color.ptr(kn.y)[kn.x] = Vec3b(0, 0, 255);     }     imshow("image_color", image_color);     waitKey();     return 0; }      

所有的坐标顶点都存放在vector v_pnts内；
结果如下图：