linux install opencv test 原

#include <stdio.h>  
#include <opencv2/opencv.hpp>  
using namespace cv;  
int main(int argc, char** argv )  
{  
    if ( argc != 2 )  
    {  
        printf("usage: DisplayImage.out <Image_Path>\n");  
        return -1;  
    }  
    Mat image;  
    image = imread( argv[1], 1 );  
    if ( !image.data )  
    {  
        printf("No image data \n");  
        return -1;  
    }  
    namedWindow("Display Image", WINDOW_AUTOSIZE );  
    imshow("Display Image", image);  
    waitKey(0);  
    return 0;
}

#!/usr/bin/env python
import cv2
print(cv2.__version__)
import numpy as np
img=cv2.imread("a.png",cv2.IMREAD_COLOR)
cv2.imshow(" this is test",img)
cv2.waitKey(0)
cv2.waitKey(27)
#cv2.waitKey(VK_ESCAPE)
#%hist -f DisplayImage.py