XML文件的写入和读取 

 1 #include<opencv2/opencv.hpp>
 2 #include<iostream>
 3 
 4 using namespace std;
 5 using namespace cv;
 6 
 7 int main() {
 8     //初始化
 9     FileStorage fs("test.xml", FileStorage::WRITE);
10 
11     //开始文件写入
12     fs << "frameCount" << 5;
13     time_t rawtime;
14     time(&rawtime);
15     fs << "calibrationDate" << asctime(localtime(&rawtime));
16     Mat cameraMatrix = (Mat_<double>(3, 3) << 1000, 0, 320, 0, 1000, 240, 0, 0, 1);
17     Mat distCoeffs = (Mat_<double>(5, 1) << 0.1, 0.01, -0.001, 0, 0);
18     fs << "cameraMatrix" << cameraMatrix << "distCoeffs" << distCoeffs;
19     fs << "features" << "[";
20     for (int i = 0; i < 3; i++) {
21         int x = rand() % 640;
22         int y = rand() % 480;
23         uchar lbp = rand() % 256;
24 
25         fs << "{:" << "x" << x << "y" << y << "lbp" << "[:";
26         for (int j = 0; j < 8; j++) 
27             fs << ((lbp >> j) & 1);
28         fs << "]" << "}";
29     }
30     fs << "]";
31     fs.release();
32 
33     printf("文件读写完毕，请在工程目录下查看生成的文件~");
34     getchar();
35 
36     return 0;
37 }
 1 #include<opencv2/opencv.hpp>
 2 #include<iostream>
 3 
 4 using namespace std;
 5 using namespace cv;
 6 
 7 int main() {
 8     //改变console 字体颜色
 9     system("color 6F");
10 
11     //初始化
12     FileStorage fs2("test.xml", FileStorage::READ);
13 
14     //第一种方法，对FileNode操作
15     int  frameCount = (int)fs2["frameCount"];
16     string date;
17 
18     //第二种方法，使用FileNode运算符>>
19     fs2["calibrationDate"] >> date;
20 
21     Mat cameraMatrix2, distCoeffs2;
22     fs2["cameraMatrix"] >> cameraMatrix2;
23 
24     fs2["distCoeffs"] >> distCoeffs2;
25 
26     cout << "frameCount:" << frameCount << endl
27         << "calibration date:" << date << endl
28         << "camera matrix:" << cameraMatrix2 << endl
29         << "distortion coeffs:" << distCoeffs2 << endl;
30 
31     FileNode features = fs2["features"];
32     FileNodeIterator it = features.begin(), it_end = features.end();
33     int idx = 0;
34     vector<uchar> lbpval;
35 
36     //使用FileNodeIterator遍历序列
37     for (; it != it_end; ++it, idx++) {
38         cout << "feature #" << idx << ":";
39         cout << "x+" << (int)(*it)["x"] << ", y=" << (int)(*it)["y"] << ", lbp: (";
40 
41         //我们也可以使用filenode>>vector操作符来很容易地读数值阵列
42         (*it)["lpb"] >> lbpval;
43         for (int i = 0; i < (int)lbpval.size(); i++)
44             cout << " " << (int)lbpval[i];
45         cout << ")" << endl;
46     }
47 
48     fs2.release();
49     
50     //程序结束，输出一些帮助文字
51     printf("\n文件读取完毕！");
52     getchar();
53 
54     return 0;
55 }

 

posted @ 2017-04-27 19:48  蒋酱酱  阅读(481)  评论(0)    收藏  举报