opencv之批量转换灰度图并保存

当图片名字有数字规律时，批量处理方式。

①srcImage 图片名字有规律

②将srcImage文件下的图片，转换为灰度图并保存入grayImage文件夹。

③

 #include <iostream>

 #include <opencv2/opencv.hpp>

 #include <string>

 using namespace cv;

 using namespace std;

 int main()

 {

     string fileName, grayFile;

     for(int i = ; i <= ; i++)

         for(int j = ; j <= ; j++)

         {

             //int 转换为 string

             stringstream ss1,ss2;

             string str1, str2;

             ss1 << i;

             ss1 >> str1;

             ss2 << j;

             ss2 >> str2;

             fileName = "srcImage/Tester_" + str1 + "TrainingPosepose_" + str2 + ".jpg";

             grayFile = "grayImage/Gray_Tester_" + str1 + "TrainingPosepose_" + str2 + ".jpg";

             //cout << fileName << endl;

             Mat srcImage = imread(fileName), grayImage;

             cvtColor(srcImage,grayImage,CV_BGR2GRAY);

             imwrite( grayFile, grayImage);

         }

     system("pause");

     return ;

 }

④完成