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  • C++数据文件存储与加载(利用opencv)

    首先请先确认已经安装好了opencv3及以上版本。

    #include <opencv2/opencv.hpp>
    #include <iostream>
    #include <string>
    using namespace cv;
    using namespace std;
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    存储
    then

    int main()
    {
    //创造一些要存的数据先
    string words = "hello, my guys!";
    float n = 3.1415926;
    Mat m = Mat::eye(3, 3, CV_32F);
    //开始创建存储器
    FileStorage save("data.yml", FileStorage::WRITE);// 你也可以使用xml格式
    save << "words" << words;
    save << "number" << n;
    save << "matrix" << m;
    save.release();
    //存储完毕
    cout << "finish storing" << endl;
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    加载
    //加载数据,类似Python字典的用法,创建加载器
    FileStorage load("data.yml", FileStorage::READ);

    float nn;
    Mat mm;
    string ww;
    load["words"] >> ww;
    load["number"] >> nn;
    load["matrix"] >> mm;
    cout<< ww << endl << nn << endl << mm;
    cout << endl << "That's the end";
    load.release();

    return 0;
    }
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    完整代码
    #include <opencv2/opencv.hpp>
    #include <iostream>
    #include <string>

    using namespace cv;
    using namespace std;

    int main()
    {
    string words = "hello, my guys!";
    float n = 3.1415926;
    Mat m = Mat::eye(3, 3, CV_32F);
    FileStorage save("data.yml", FileStorage::WRITE);
    save << "words" << words;
    save << "number" << n;
    save << "matrix" << m;
    save.release();
    cout << "finish storing" << endl;

    FileStorage load("data.yml", FileStorage::READ);

    float nn;
    Mat mm;
    string ww;
    load["words"] >> ww;
    load["number"] >> nn;
    load["matrix"] >> mm;
    cout<< ww << endl << nn << endl << mm;
    cout << endl << "That's the end";
    load.release(http://www.my516.com);

    return 0;
    }

    ---------------------

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  • 原文地址:https://www.cnblogs.com/hyhy904/p/11075595.html
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