OpenCV/opencv_contrib/modules/datasets/samples/track_vot.cpp

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#include "opencv2/datasets/track_vot.hpp"
#include <opencv2/core.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/imgproc.hpp>

#include <cstdio>
#include <cstdlib>

#include <string>
#include <vector>
#include <set>

using namespace std;
using namespace cv;
using namespace cv::datasets;

int main(int argc, char *argv[])
{
	const char *keys =
		"{ help h usage ? |    | show this message }"
		"{ path p         |true| path to folder with dataset }"
		"{ datasetID id         |1| Dataset ID}";
	CommandLineParser parser(argc, argv, keys);
	string path(parser.get<string>("path"));
	int datasetID(parser.get<int>("datasetID"));
	if (parser.has("help") || path == "true")
	{
		parser.printMessage();
		getchar();
		return -1;
	}

	Ptr<TRACK_vot> dataset = TRACK_vot::create();
	dataset->load(path);
	printf("Datasets number: %d\n", dataset->getDatasetsNum());
	for (int i = 1; i <= dataset->getDatasetsNum(); i++)
		printf("\tDataset #%d size: %d\n", i, dataset->getDatasetLength(i));

	dataset->initDataset(datasetID);

	for (int i = 0; i < dataset->getDatasetLength(datasetID); i++)
	{
		Mat frame;
		if (!dataset->getNextFrame(frame))
			break;
		//Draw Ground Truth BB
		vector <Point2d> gtPoints =  dataset->getGT();
		for (int j = 0; j < (int)(gtPoints.size()-1); j++)
			line(frame, gtPoints[j], gtPoints[j + 1], Scalar(0, 255, 0), 2);
		line(frame, gtPoints[0], gtPoints[(int)(gtPoints.size()-1)], Scalar(0, 255, 0), 2);

		imshow("VOT 2015 DATASET TEST...", frame);
		waitKey(100);
	}

	getchar();
	return 0;
}