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#include <Eigen/Dense>
#include <opencv2/core/eigen.hpp>
#include <opencv2/opencv.hpp>
using namespace cv;
using namespace std;
int main()
{// opencv 旋转向量cv::Vec3d rvec(1.0, 2.0, 3.0);cv::Mat rotation_matrix;cv::Rodrigues(rvec, rotation_matrix);cout << "  opencv方法" << endl;cout << "   " << rotation_matrix << endl;cout << "  -------------------     " <<  endl;cout << "  eigen方法    旋转矩阵 " << endl;// eigen 旋转矩阵Eigen::Matrix3f eigen_rotation;cv::cv2eigen(rotation_matrix, eigen_rotation);cout << "   " << eigen_rotation << endl;return 0;}