opencv学習-読み書きxml

この記事を転載しますhttp://blog.csdn.net/jarvischu/article/details/8481510

#include "stdafx.h"
#include <iostream>
#include "opencv2/opencv.hpp"


using namespace std;


int _tmain(int argc, _TCHAR* argv[])
{
//  XML    
CvFileStorage* fs = cvOpenFileStorage("jarvischu.xml",
      0,     //       ，   NULL,          
      CV_STORAGE_WRITE,
     "GB2312"//  
     );
//    

cvWriteInt(fs,"frame_count",10);  //-- Int
cvWriteReal(fs,"pi",3.14);             //-- Float


//--    
cvStartWriteStruct(fs,"frame_size",CV_NODE_MAP,"id_size" );//    （       ）
cvWriteInt(fs,"width",320);
cvWriteInt(fs,"height",200);
cvEndWriteStruct(fs);


cvStartWriteStruct(fs,"author_info",CV_NODE_SEQ,"id_author");//    
cvWriteString(fs,0,"JarvisChu");
cvWriteString(fs,0,"China");
cvEndWriteStruct(fs);


//--   
unsigned char vec[]={1,2,3,4,5,6,7,8,9};
CvMat mat = cvMat(3,3,CV_8UC1,vec);
cvWrite(fs,"Matrix",&mat);


//--   
cvWriteComment(fs,"This is a example for operatoring the xml file",0);//  0       ，0    


//  
cvReleaseFileStorage(&fs);


//  XML  
fs = cvOpenFileStorage("jarvischu.xml",
       0,     //       ，   NULL,          
CV_STORAGE_READ,
"GB2312"//  
      );


//    
int f = cvReadIntByName(fs,0,"frame_count",0);//      Int


//--      
CvFileNode* fn = cvGetFileNodeByName(fs,0,"frame_size"); //      （  ，  ）
int width = cvReadIntByName(fs,fn,"width"); //          
int height = cvReadIntByName(fs,fn,"height");


//--          
fn = cvGetFileNodeByName(fs,0,"author_info");//     
CvSeq* seq = fn->data.seq;    //        
const char* name = cvReadString((CvFileNode*)cvGetSeqElem(seq,0));//         0
const char* country = cvReadString((CvFileNode*)cvGetSeqElem(seq,1));//         1


cout<<"frame_count:"<<f<<endl<<"width:"<<width<<endl<<"height"<<height<<endl\
<<"name:"<<name<<endl<<"country:"<<country<<endl;


return 0;
}