c++ opencv对图像进行畸变矫正

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已知图像内参和畸变系数

// undistort
// OpenCV camera model.
// CamParam:   fx, fy, cx, cy, k1, k2, p1, p2
void distort_image(const string & img_path, vector<double> &CamParam){
    Mat undistort_img = imread(img_path);
    string img_name = img_path.substr(img_path.find_last_of("/")+1);
    cout<<"image_name:"<<img_name<<endl;
    double fx = CamParam[0];
    double fy = CamParam[1];
    double cx = CamParam[2];
    double cy = CamParam[3];
    double k1 = CamParam[4];
    double k2 = CamParam[5];
    double p1 = CamParam[6];
    double p2 = CamParam[7];

    cv::Mat cv_cam_matrix_ = (cv::Mat_<double>(3, 3) << fx, 0, cx, 0, fy, cy, 0, 0, 1);
    cv::Mat cv_dist_params_ = (cv::Mat_<float>(4, 1) << k1, k2, p1, p2);

    Mat distort_img;
    cv::undistort(undistort_img, distort_img, cv_cam_matrix_, cv_dist_params_, noArray());
    cv::imwrite("../output/"+img_name, distort_img);

}

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