参见 windows 下OpenCV的安装部署详细教程 测试案例:
using namespace cv;
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
/*ScreenRecord w;
w.show();*/
Mat img = imread("E:\\back.jpg");
namedWindow("测试opencv");
imshow("测试opencv", img);
//cvWaitKey(6000);
return a.exec();
}