【OpenCV学习】改变图片大小

作者：gnuhpc
出处：http://www.cnblogs.com/gnuhpc/

#include "cv.h"
#include "highgui.h"
#include <math.h>

int main(int argc,char * argv[])
{
IplImage* src = /blog.armyourlife.info/0;
IplImage* dst = 0;
double scale=0.618;//缩放比例
CvSize dst_size;//定义二维化矩形框

if((argc==2) && (src = /blog.armyourlife.info/cvLoadImage(argv[1],1))!=0)
{
dst_size.width = (int)(src->width * scale);
dst_size.height = (int)(src->height * scale);//确定新图的矩形框
dst=cvCreateImage(dst_size,src->depth,src->nChannels);//创建图像头
cvResize(src,dst,CV_INTER_LINEAR);//使用双线性差值减小图像。
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;

}