我希望有人能弄清楚。
码
int iwidth = screenImage->width - templ->width+1;
int iheight = screenImage->height - templ->height+1;
IplImage *ftmp = cvCreateImage(cvSize(iwidth, iheight), 8,1);
double max_val;
double min_val;
CvPoint min_loc;
CvPoint max_loc;
cvMatchTemplate(screenImage,templ,ftmp,0);
cvMinMaxLoc(ftmp, &min_val, &max_val, &min_loc, &max_loc, NULL);
cvRectangle(screenImage, cvPoint(min_loc.x, min_loc.y), cvPoint((min_loc.x + templ->width), (min_loc.y + templ->height)), CV_RGB(0, 255, 0), 1);
cvNamedWindow("src", 1);
cvShowImage("src", screenImage);
cvWaitKey(0);
当我运行它时,出现错误:
OpenCV错误:断言失败(result.size()== cv :: Size(std :: abs(img.cols-te
mplscols)+ 1,std :: abs(img.rows-templ.rows)+1)&& result.type()== CV_32F)
在cvMatchTemplate中,文件E:\ opencv \ opencv \ sources \ modules \ imgproc \ src \ templmatch
.cpp,第1100行
最佳答案
这条线产生错误
IplImage *ftmp = cvCreateImage(cvSize(iwidth, iheight), 8,1);
它应该是
IplImage *ftmp = cvCreateImage(cvSize(iwidth, iheight), 32,1);
MatchTemplate
需要的结果图像应该是32位浮点数,但是您给出了8位。这就是错误的意思result.size() == cv::Size(std::abs(img.cols - te mpl.cols) + 1, std::abs(img.rows - templ.rows) + 1) && result.type() == CV_32F