opencv之pyrDown与pyrUp

#include "opencv2/imgproc/imgproc.hpp"

#include "opencv2/highgui/highgui.hpp"

#include <stdlib.h>

#include <stdio.h>

using namespace cv;

#define TIME_DELAY 1000//金字塔缩放一次的间隔

#define MAX_COL 1500//金字塔最大图像的col限制

#define MIN_COL 200//金字塔最小图像的col限制

/** @function main */

int main( int argc, char** argv )

{

Mat src=imread(argv[1]),dst,tmp;

/*首先多图像放大，以便更好的产生动画的效果*/

for(;;)

{

pyrUp(src,tmp);

src=tmp;

if(src.cols>=MAX_COL)break;

}

cvNamedWindow( "pyrDown", CV_WINDOW_AUTOSIZE );//创建命名窗口

for(;;)

{

pyrDown(src,dst);

imshow("pyrDown",dst);

if(waitKey(TIME_DELAY)>0)break;

src=dst;

if(src.cols<=MIN_COL)src=tmp;

}

cvDestroyWindow( "pyrDown" ); //销毁窗口

return 0;

}