测试程序 a.cpp

#include <stdio.h>
#include <opencv2/opencv.hpp>
using namespace cv;
int main(int argc, char** argv )
{
   Mat image;
    image = imread( "./dog.jpg", 1 );
    if ( !image.data )
    {
        printf("No image data \n");
        return -1;
    }
    namedWindow("Display Image", WINDOW_AUTOSIZE );
    imshow("Display Image", image);
    waitKey(0);
    return 0;
}

编译测试程序 g++ a.cpp -o Test pkg-config --cflags --libs opencv

注：前提是要安装pkg-config哦～