Mat写入txt文件

void saveMat(Mat I, string path)
{ofstream matFile;matFile.open(path, ios::out);if (!matFile.fail()){for (int i = 0; i < I.rows; i++){for (int j = 0; j < I.cols; j++){matFile << I.at<double>(i, j) << "\t";}matFile << std::endl;}}matFile.close();
}

从txt文件读入Mat

Mat readMat(string path)
{ifstream fin(path);Mat gray(333, 65, CV_64FC1);for (int i = 0; i < gray.rows; i++){for (int j = 0; j < gray.cols; j++){double a;fin >> a;gray.at<double>(i, j) = a;//}}return gray;
}