idream68的博客

准备条件 安装udev: sudo apt-get install libudev-dev 项目引入头文件:#include <libudev.h> 项目添加:cmake添加udev库 libudev.so 代码实现 //get vidpid->index int GetCameraId(int &id,std::string vid,std::string pid) { struct udev *udev = NULL; struct udev_enumer

将人脸框的矩形改为 void drawEllipse(cv::Mat &display, const Rect &faceRect, const cv::Scalar &color, int debounce, float cw, float acw) { static auto origin = faceRect; if(std::abs(origin.left - faceRect.left) > debounce || std::abs(origin

图像旋转，90,180,270 void rotateMat(cv::Mat &m) { int rotate = 90;//旋转的角度可以自己设置 if (rotate != 0) { cv::Mat m90, m180; if (rotate == 90) { cv::transpose(m, m90); flip(m90, m90, 0); m = m90; } else if (rotate == 180) { cv::flip(m,