Opencv显示图像

#include <highgui.h>
#include <stdio.h>
int main(int argc, char **argv)
{
    IplImage * img = cvLoadImage( "dongqing.jpg",CV_LOAD_IMAGE_ANYDEPTH | CV_LOAD_IMAGE_ANYCOLOR);
    //IplImage * img = cvLoadImage( argv[1],CV_LOAD_IMAGE_ANYDEPTH | CV_LOAD_IMAGE_ANYCOLOR);
    cvNamedWindow("DongQing",CV_WINDOW_AUTOSIZE);
    cvShowImage("DongQing",img);
    cvWaitKey(0);
    cvReleaseImage(&img);
    cvDestroyWindow("DongQing");
    return 0;
}