Hello there, i have a question.
i have a program that does simple template matching. My question is, i want to make the source from my webcam and the result is showed on my webcam. Here's my code
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
int main()
{
cv::Mat ref = cv::imread("reference.png");
cv::Mat tpl = cv::imread("template.png");
if (ref.empty() || tpl.empty())
return -1;
cv::Mat gref, gtpl;
cv::cvtColor(ref, gref, CV_BGR2GRAY);
cv::cvtColor(tpl, gtpl, CV_BGR2GRAY);
cv::Mat res(ref.rows-tpl.rows+1, ref.cols-tpl.cols+1, CV_32FC1);
cv::matchTemplate(gref, gtpl, res, CV_TM_CCOEFF_NORMED);
cv::threshold(res, res, 0.8, 1., CV_THRESH_TOZERO);
while (true)
{
double minval, maxval, threshold = 0.8;
cv::Point minloc, maxloc;
cv::minMaxLoc(res, &minval, &maxval, &minloc, &maxloc);
if (maxval >= threshold)
{
cv::rectangle(
ref,
maxloc,
cv::Point(maxloc.x + tpl.cols, maxloc.y + tpl.rows),
CV_RGB(0,255,0), 2
);
cv::floodFill(res, maxloc, cv::Scalar(0), 0, cv::Scalar(.1), cv::Scalar(1.));
}
else
break;
}
cv::imshow("reference", ref);
cv::waitKey();
return 0;
}
Thank you for your attention. I wait for any of your response.
