代码如下：

#include "stdafx.h"
#include "cv.h"
#include "highgui.h"
#include "math.h"

int  main(int argc, char* argv[]))
{   IplImage *src = 0;
    IplImage *dst = 0;
    float scale = 0.618;  //缩放倍数为0.618倍
    CvSize dst_cvsize;
    /* the first command line parameter must be image file name */
   if ( argc == 2 && (src = cvLoadImage(argv[1], -1))!=0 )
  {
        ;
   }
   else
   {
  src = cvLoadImage("d:/Bush01.jpg");
   // }
    dst_cvsize.width = src->width * scale;
    dst_cvsize.height = src->height * scale;
    dst = cvCreateImage( dst_cvsize, src->depth, src->nChannels);
    cvResize(src, dst, CV_INTER_LINEAR);
    cvNamedWindow( "src",   CV_WINDOW_AUTOSIZE );
    cvNamedWindow( "dst",   CV_WINDOW_AUTOSIZE );
    cvShowImage( "src", src );
    cvShowImage( "dst", dst );
    cvWaitKey(-1);
    cvReleaseImage(&src);
    cvReleaseImage(&dst);
    cvDestroyWindow( "src" );
    cvDestroyWindow( "dst" );
 

 return 0;
}