计算image 积分图

 // testopencv.cpp : 定义控制台应用程序的入口点。
 //

 #include "stdafx.h"
 #include <opencv2\opencv.hpp>
 #include <fstream>
 #include <vector>
 #include <string>
 using namespace std;
 using namespace cv;
 void getFileName(string & filename,vector<string> &vstr)
 {
     cout<<"begin read file name from "<< filename<<endl;
     string name;
     ifstream in(filename);
     while(!in.eof())
     {
         in>>name;
         vstr.push_back(name);
     }
     cout<<"end read filename , the total image number is "<< vstr.size()<<endl;
 }
 void writeIntegral(vector<string> &vstr,string& filename)
 {
     cout<<"begin calculate the image integral"<<endl;
     ofstream out(filename,ofstream::binary);
     int num = ;
     vector<string>::iterator begin = vstr.begin();
     for( ;begin != vstr.end(); begin++)
     {
         //第二个参数为0读进来的image都是灰度的
         Mat img = imread(*begin,);
         if(img.empty())
         {
             cout<<"read image "<<*begin<<" failed"<<endl;
             continue;
         }
         num++;
         Mat gray_img;

         CvMat sour_image=gray_img;
         CvMat *inte_image = cvCreateMat(gray_img.rows+,gray_img.cols+,CV_32F);
         cvIntegral(&sour_image,inte_image);

         float *f = inte_image->data.fl;

         out.write((char*)(f),inte_image->width*inte_image->height*sizeof(float));
     }
     out.close();
     cout<<"total image:"<<vstr.size()<<" cvIntegral number:"<<num<<endl;
 }
 int _tmain(int argc, _TCHAR* argv[])
 {
     vector<string> v;
     getFileName(string("face.txt"),v);
     writeIntegral(v,string("face.dat"));
     waitKey();
     return ;
 }