标签：result ref opened std name ret sop 扩展名 div
https://blog.csdn.net/A_L_A_N/article/details/83272772
FileStorage类
FileStorage类将各种OpenCV数据结构的数据存储为XML或YML格式。
构造函数：cv::FileStorage(const string& source, int flags， const string& encoding=string());
参数说明：
source：存储或读取数据的文件名（字符串），其扩展名(.xml 或 .yml或者.yaml)决定文件格式。
flags：操作方式，包括：FileStorage::READ、FileStorage::WRITE、FileStorage::APPEND。
encoding：编码方式，用默认值就好。
写xml/ymal文件：
#include<iostream>
#include<opencv2/opencv.hpp>
using namespace std;
using namespace cv;
void main()
{
//标定结果保存
FileStorage fs("caliResult.xml", FileStorage::WRITE);
int cameraId = 0;
Mat intrMatrix = (Mat_<double>(3, 3) << 7.7881772950073355e+002, 0, 3.1562441595543476e+002, 0, 7.8624564811643825e+002, 2.5630331974129393e+002, 0, 0, 1);
Mat distCoeffs = (Mat_<double>(1, 5) << -7.2660835182078581e-002, 2.0765291395491934e+000, 5.9477659924542790e-004, -8.2981148319346263e-004, -7.0307616798578119e+000);
fs << "cameraId" << cameraId;
fs << "intrinsic_parameters" << intrMatrix;
fs << "distortion_parametes" << distCoeffs;
fs.release();
}
保存的.xml文件：
<?xml version="1.0"?>
<opencv_storage>
<cameraId>0</cameraId>
<intrinsic_parameters type_id="opencv-matrix">
<rows>3</rows>
<cols>3</cols>
<dt>d</dt>
<data>
7.7881772950073355e+02 0. 3.1562441595543476e+02 0.
7.8624564811643825e+02 2.5630331974129393e+02 0. 0. 1.</data></intrinsic_parameters>
<distortion_parametes type_id="opencv-matrix">
<rows>1</rows>
<cols>5</cols>
<dt>d</dt>
<data>
-7.2660835182078581e-02 2.0765291395491934e+00
5.9477659924542790e-04 -8.2981148319346263e-04
-7.0307616798578119e+00</data></distortion_parametes>
</opencv_storage>
读xml/ymal文件：
#include<iostream>
#include<opencv2/opencv.hpp>
using namespace std;
using namespace cv;
void main()
{
//FileStorage fs("caliResult.xml",FileStorage::READ);
FileStorage fs;
fs.open("caliResult.xml",FileStorage::READ);
if(!fs.isOpened())
{
return;
}
int cameraId;
Mat intrMatrix(3,3,CV_64F);
Mat distCoeffs(5,1,CV_64F);
fs["cameraId"]>>cameraId;
fs["intrinsic_parameters"]>>intrMatrix;
fs["distortion_parametes"]>>distCoeffs;
fs.release();
}
标签：result ref opened std name ret sop 扩展名 div
原文地址：https://www.cnblogs.com/kekeoutlook/p/11918887.html
