Question

我试图找到特征值和特征向量矩阵，如下所示：

int m = 5;

float b[5][5] = {
    { 1.96 , -6.49, -0.47, -7.20, -0.65},
    { -6.49,  3.80, -6.39,  1.50, -6.34},
    { -0.47, -6.39,  4.17, -1.51,  2.67},
    { -7.20,  1.50, -1.51,  5.70,  1.80},
    { -0.65, -6.34,  2.67,  1.80, -7.10}
    };

    cv::Mat E, V;
    cv::Mat M(m,m,CV_64FC1,b);
    cv::eigen(M,E,V);

    // eigenvalues sorted desc
    for(int i=0; i < 5; i++)
        std::cout << E.at<float>(0,i) << " \t";

Answer 1

这对我有用：

int m = 5;

double b[5][5] = {
    { 1.96 , -6.49, -0.47, -7.20, -0.65},
    { -6.49,  3.80, -6.39,  1.50, -6.34},
    { -0.47, -6.39,  4.17, -1.51,  2.67},
    { -7.20,  1.50, -1.51,  5.70,  1.80},
    { -0.65, -6.34,  2.67,  1.80, -7.10}
    };

    cv::Mat E, V;
    cv::Mat M(m,m,CV_64FC1,b);

    cout << "M: " << M << endl;

    cv::eigen(M,E,V);

    cout << "E: " << E << endl;
    cout << "V: " << V << endl;

问题在于＆＃34; CV_64FC1＆＃34;是双重不浮动（check CV-types here）。

opencv错误Assertion失败Mat.cpp行：537

1 个答案: