opencv C++ Mat构造函数

   cv::Scalar scalar1(v);
    cv::Mat mat3(size,CV_8UC1,scalar1);
    std::cout<<mat3<<std::endl;
    std::cout<<std::endl;

    int a[][][]={
        {{,,},{,,},{,,}},
        {{,,},{,,},{,,}}
    };
    cv::Mat mat4(,a[][],CV_8UC1);
    std::cout<<mat4<<std::endl;
    std::cout<<std::endl;

    std::vector<std::vector<int>> arr2(,std::vector<int>(,));  // 创建二维数组
    //std::vector<int>arr2(2);
    cv::Mat mat5(arr2,CV_8UC1);
    std::cout<<mat5<<std::endl;
    std::cout<<std::endl;

    cv::Mat mat6=(cv::Mat_<double>(,)<<1.2,1.3,0.1,0.5,9.3,8.6);
    std::cout<<mat6<<std::endl;
    std::cout<<std::endl;
    return ;
}