基于opencv线性插值缩放数字图像

代码说明：

基于opencv对图像实行双线性插值缩放以及最临近插值缩放#include "highgui.h" #include "cv.h" IplImage *src=NULL; IplImage *dst1,*dst2; void main() { double scale1=0.1; double scale2=10; CvSize dst1_size; CvSize dst2_size; src=cvLoadImage("E:学习VC文件c++ pricticepro1pro1.jpg"); //缩小系数 dst1_size.width=(int)(src->width*scale1); dst1_size.height=(int)(src->height*scale1); dst1=cvCreateImage(dst1_size,src->depth,src->nChannels); cvResize(src,dst1,CV_INTER_NN);//像素插值(最邻近插值)缩小 //放大系数 dst2_size.width=(int)(dst1->width*scale2); dst2_size.height=(int)(dst1->height*scale2); dst2=cvCreateImage(dst2_size,src->depth,src->nChannels); cvResize(dst1,dst2,CV_INTER_NN);//像素插值(最邻近插值)放大 cvNamedWindow("原图",CV_WINDOW_AUTOSIZE); cvNamedWindow("缩小10倍后图",CV_WINDOW_AUTOSIZE); cvNamedWindow("缩小10倍后再放大10倍还原图",CV_WINDOW_AUTOSIZE); cvShowImage("原图",src); cvShowImage("缩小