核心函数：cvCanny

程序：

代码:

#include "cv.h"
#include "cxcore.h"
#include "highgui.h"
#include <iostream>
int canny(int argc,char** argv)
{
IplImage* src1=cvLoadImage("e:\\picture\\7.jpg",0);  //源图像和目的图像都必须为灰度图像
IplImage* src2=cvLoadImage("e:\\picture\\8.jpg",0);
IplImage* src3=cvLoadImage("e:\\picture\\4.jpg",0);
IplImage* dst1=cvCreateImage(cvGetSize(src1),8,1);
IplImage* dst2=cvCreateImage(cvGetSize(src2),8,1);
IplImage* dst3=cvCreateImage(cvGetSize(src3),8,1);
cvCanny(src1,dst1,50,125); //第三个和第四个参数分别为上下阀值，建议上下阀值的比为2:1到3:1
cvCanny(src2,dst2,50,125);
cvCanny(src3,dst3,50,125);
cvNamedWindow("src1");
cvNamedWindow("src2");
cvNamedWindow("src3");
cvNamedWindow("dst1");
cvNamedWindow("dst2");
cvNamedWindow("dst3");
cvShowImage("src1",src1);
cvShowImage("src2",src2);
cvShowImage("src3",src3);
cvShowImage("dst1",dst1);
cvShowImage("dst2",dst2);
cvShowImage("dst3",dst3);
cvWaitKey(0);
cvDestroyWindow("src1");
cvDestroyWindow("src2");
cvDestroyWindow("src3");
cvDestroyWindow("dst1");
cvDestroyWindow("dst2");
cvDestroyWindow("dst3");
cvReleaseImage(&src1);
cvReleaseImage(&src2);
cvReleaseImage(&src3);
cvReleaseImage(&dst1);
cvReleaseImage(&dst2);
cvReleaseImage(&dst3);
return 0;
}

本文出自 “flyclc” 博客，请务必保留此出处http://flyclc.blog.51cto.com/1385758/1539739