OpenCV x XML

gistfile1.cpp

    // filio::output
    system("mkdir data");
    cv::FileStorage cvfs("./data/camera.xml", CV_STORAGE_WRITE);
    cv::write(cvfs,"intrinsicMat", intrinsic_param_matrix);
    cv::write(cvfs,"distCoeffs", distortion_coeffs);

    // fileio::input
    cv::FileStorage cvfs("./data/camera.xml", CV_STORAGE_READ);
    cv::FileNode node(cvfs.fs, NULL);
    cv::Mat in_mat, dist_coeff;
    cv::read(node["intrinsicMat"], in_mat);
    cv::read(node["distCoeffs"], dist_coeff);
    std::cerr << ma << std::endl;
    std::cerr << mb << std::endl;

    cv::Mat ma, mb;
    cvfs["intrinsicMat"] >> ma;
    cvfs["distCoeffs"] >> mb; // OK