matchTemplate function
MatchTemplate compares a template against overlapped image regions.
For further details, please see: https:///docs.opencv.org/master/df/dfb/group__imgproc__object.html#ga586ebfb0a7fb604b35a23d85391329be
Implementation
Mat matchTemplate(Mat image, Mat templ, int method, {OutputArray? result, Mat? mask}) {
mask ??= Mat.empty();
result ??= Mat.empty();
cvRun(() => cffi.MatchTemplate(image.ref, templ.ref, result!.ref, method, mask!.ref));
return result;
}