#include <stdio.h>
#include <cv.h>
#include <highgui.h>


int main(int argc, char** argv){
  if( argc != 2 ) {
    printf( "Usage: show imagefile \n" );
    exit( 0 );
  }
  IplImage *img  = cvLoadImage( argv[1], -1);
  char* winname = argv[1];

  cvNamedWindow( winname, CV_WINDOW_AUTOSIZE );
  cvShowImage( winname, img );
  while(1) {
    int c = cvWaitKey(0);
    if( c == 'q' || c==27 ) break;
  }

  cvReleaseImage( &img );
}