OpenCV学习笔记（31）练习 xml文件读取

#include "opencv2/opencv.hpp"  
#include <time.h>  
using namespace cv;
using namespace std;


int main()
{
	//初始化
	FileStorage fs2("test.yaml", FileStorage::READ);

	// 第一种方法，对FileNode操作
	int frameCount = (int)fs2["frameCount"];

	std::string date;
	// 第二种方法，使用FileNode运算符> > 
	fs2["calibrationDate"] >> date;

	Mat cameraMatrix2, distCoeffs2;
	fs2["cameraMatrix"] >> cameraMatrix2;
	fs2["distCoeffs"] >> distCoeffs2;

	cout << "frameCount: " << frameCount << endl
		<< "calibration date: " << date << endl
		<< "camera matrix: " << cameraMatrix2 << endl
		<< "distortion coeffs: " << distCoeffs2 << endl;

	FileNode features = fs2["features"];
	FileNodeIterator it = features.begin(), it_end = features.end();
	int idx = 0;
	std::vector<uchar> lbpval;

	//使用FileNodeIterator遍历序列
	for (; it != it_end; ++it, idx++)
	{
		cout << "feature #" << idx << ": ";
		cout << "x=" << (int)(*it)["x"] << ", y=" << (int)(*it)["y"] << ", lbp: (";
		// 我们也可以使用使用filenode > > std::vector操作符很容易的读数值阵列
		(*it)["lbp"] >> lbpval;
		for (int i = 0; i < (int)lbpval.size(); i++)
			cout << " " << (int)lbpval[i];
		cout << ")" << endl;
	}
	fs2.release();

	//程序结束，输出一些帮助文字
	printf("\n文件读取完毕，请输入任意键结束程序~");
	getchar();

	return 0;
}