ROI.zip_ROI

#include <iostream> #include "cv.h" #include "cxcore.h" #include "highgui.h" using namespace std; int main() { IplImage *src = cvLoadImage("20.jpg", 3); /*IplImage *src1 = cvLoadImage("192.jpg", 3);*/ IplImage *templat = cvLoadImage("123.jpg", 3); IplImage *result; if(!src || !templat) { cout << "打开图像失败"<< endl; return 0; } int srcW, srcH, templatW, templatH, resultH, resultW; srcW = src->width; srcH = src->height; templatW = templat->width; templatH = templat->height; if(srcW < templatW || srcH < templatH) { cout <<"模板不能比原图像小" << endl; return 0; } resultW = srcW - templatW + 1; resultH = srcH - templatH + 1; result=cvCreateImage(cvSize(resultW, resultH), 32, 1); cvMatchTemplate(src, templat, result, CV_TM_SQDIFF); double minValue, maxValue; CvPoint minLoc, maxLoc; cvMinMaxLoc(result, &minValue, &maxValue, &minLoc, &maxLoc); CvRect rect; IplImage *dst; dst=cvCreateImage(cvSize(280,280),8,3); rect.x=minLoc.x + templatW/2-140,rect.y=minLoc.y+ templatH/2-140,rect.width=280,rect.height=280; cvSetImageROI(src,rect); cvCopy(src,dst); cvResetImageROI(src); /*cvSaveImage("g://xfpicture.jpg",dst);*/ cout<<rect.x<<endl<<rect.y<<endl<<rect.width<<endl<<rect.height<<endl; cvShowImage("dst",dst); cvWaitKey(0); cvDestroyWindow("dst"); cvReleaseImage(&src); cvReleaseImage(&result); cvReleaseImage(&templat); cvReleaseImage(&dst); getchar(); return 0; }