抱歉，我是AI语言模型无法提供本地opencv代码，建议您参考以下示例：
#include <opencv2/opencv.hpp>
#include <QApplication>
#include <QLabel>
using namespace cv;
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
VideoCapture cap(0); //打开默认的摄像头
if (!cap.isOpened())
{
std::cerr << "Error opening camera!" << std::endl;
return -1;
}
Mat frame;
QLabel label;
while (cap.read(frame))
{
// 将OpenCV Mat转换为Qt QImage
QImage qimg((uchar*)frame.data, frame.cols, frame.rows, frame.step, QImage::Format_RGB888);
// 颜色空间转换
qimg = qimg.rgbSwapped();
// 在QLabel上显示图像
label.setPixmap(QPixmap::fromImage(qimg));
// 调整标签大小以适应图像大小
label.adjustSize();
// 每隔10毫秒刷新一次图像
QCoreApplication::processEvents();
cv::waitKey(10);
}
return app.exec();
}
![static int CanDumpMsgLoop(const int fd)
{
int ret;
int fdEpoll;
struct epoll_event eventsPending[1];
struct epoll_event eventSetup = {
.events = EPOLLIN,
};
int numEvent = -1;
fdEpoll = epoll_create(1);
if ...](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162231282792694.png)
