absence

MatchTemplate function causing exception

5

After using MatchTemplate function I receive an Exception. ## Description ``` func main() { haystack_img := gocv.IMRead("./test.png", gocv.IMReadUnchanged) needle_img := gocv.IMRead("./test2.png", gocv.IMReadUnchanged) result := gocv.NewMat() gocv.MatchTemplate(haystack_img, needle_img, &result, gocv.TmCcoeffNormed, gocv.NewMat())...