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#ifndef UTILS_H
#define UTILS_H
#include <opencv2/core.hpp>
#include <vector>
#include "stats.h"
using namespace std;
using namespace cv;
void drawBoundingBox(Mat image, vector<Point2f> bb);
void drawStatistics(Mat image, const Stats& stats);
void printStatistics(string name, Stats stats);
vector<Point2f> Points(vector<KeyPoint> keypoints);
Rect2d selectROI(const String &video_name, const Mat &frame);
void drawBoundingBox(Mat image, vector<Point2f> bb)
{
for(unsigned i = 0; i < bb.size() - 1; i++) {
line(image, bb[i], bb[i + 1], Scalar(0, 0, 255), 2);
}
line(image, bb[bb.size() - 1], bb[0], Scalar(0, 0, 255), 2);
}
void drawStatistics(Mat image, const Stats& stats)
{
static const int font = FONT_HERSHEY_PLAIN;
stringstream str1, str2, str3, str4;
str1 << "Matches: " << stats.matches;
str2 << "Inliers: " << stats.inliers;
str3 << "Inlier ratio: " << setprecision(2) << stats.ratio;
str4 << "FPS: " << std::fixed << setprecision(2) << stats.fps;
putText(image, str1.str(), Point(0, image.rows - 120), font, 2, Scalar::all(255), 3);
putText(image, str2.str(), Point(0, image.rows - 90), font, 2, Scalar::all(255), 3);
putText(image, str3.str(), Point(0, image.rows - 60), font, 2, Scalar::all(255), 3);
putText(image, str4.str(), Point(0, image.rows - 30), font, 2, Scalar::all(255), 3);
}
void printStatistics(string name, Stats stats)
{
cout << name << endl;
cout << "----------" << endl;
cout << "Matches " << stats.matches << endl;
cout << "Inliers " << stats.inliers << endl;
cout << "Inlier ratio " << setprecision(2) << stats.ratio << endl;
cout << "Keypoints " << stats.keypoints << endl;
cout << "FPS " << std::fixed << setprecision(2) << stats.fps << endl;
cout << endl;
}
vector<Point2f> Points(vector<KeyPoint> keypoints)
{
vector<Point2f> res;
for(unsigned i = 0; i < keypoints.size(); i++) {
res.push_back(keypoints[i].pt);
}
return res;
}
#endif // UTILS_H
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