opencv批量修改图片尺寸

 #include"opencv2/opencv.hpp"

 using namespace std;
 using namespace cv;
 #include<opencv2/opencv.hpp>
 #include<iostream>
 using namespace cv;
 using namespace std;
 int main()
 {
     int a = ;
     char path[];
     for (a = ; a < ;a++)
     {
         sprintf(path, "E:\\SVM_Class\\trainnigdata\\%d.jpg", a);

         Mat inputImg = imread(path, );

         Mat resizea;
         resizea.create(, , CV_8UC1);
         resize(inputImg, resizea, resizea.size(), , , INTER_CUBIC);
         if ()
         {
             stringstream ss;
             ss << a << ".jpg";
             imwrite(ss.str(), resizea);

         }
     }
     system("pause");
 }