using namespace cv;
using namespace std;
+void help()
+{
+ cout << "\nThis program demonstrates line finding with the Hough transform.\n"
+ "Call:\n"
+ "./houghlines [image_len -- Default is pic1.png\n" << endl;
+}
+
int main(int argc, char** argv)
{
const char* filename = argc >= 2 ? argv[1] : "pic1.png";
cout << "can not open " << filename << endl;
cout << "Usage: houghlines <image_name>" << endl;
}
-
+ help();
Mat dst, cdst;
Canny(src, dst, 50, 200, 3);
cvtColor(dst, cdst, CV_GRAY2BGR);