C++按文件夹读写图片

#include <iostream>#include <sstream>#include <fstream>#include <string>#include <direct.h>using namespace std;int main(){string path="D:/faceData/yeleface_group/";string savepath="D:/faceData/yeleface_group_TT/";int fnum=15;int pnum=10;//_mkdir("D:/faceData/yeleface_group_LTV/1/");_mkdir(savepath.c_str());for(int i=0;i<fnum;++i){stringstream f;f<<savepath<<i+1<<"/";_mkdir(f.str().c_str());//cout<<f.str()<<endl;for(int j=0;j<pnum;++j){stringstream rname;stringstream wname;rname<<path<<i+1<<"/"<<j+1<<".jpg";wname<<savepath<<i+1<<"/"<<j+1<<".jpg";Mat m_FaceImg=imread(rname.str().c_str(),0);TT(m_FaceImg,m_FaceImg);imwrite(wname.str().c_str(),m_FaceImg);}}return 0;}