/* Display a graph from a vector of values.
   only used for debugging. */
#pragma once
#include <opencv2/core.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>     // cv::Canny()
#include <iostream>
#include <cmath>
using namespace cv;
using namespace std;

void cvGraph(int* values, int n, int xSize, int ySize, const char *title);