#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/objdetect/objdetect.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "utils.h"

using namespace cv;
using namespace std;

int main(int argc, char** argv) {
//	printf("HERE!\n");
	HOGDescriptor hog;
	vector<float> ders;
	vector<Point> locs;
	Mat Hogfeat;
	ofstream fout;
	Mat img;
	double t1;

	tstart();

	img = imread(argv[1],CV_LOAD_IMAGE_GRAYSCALE);
	fout.open(argv[2]);
	cv::resize(img, img, cvSize(64, 64));
	hog.winSize = Size(64, 64);
	hog.blockSize = Size(16, 16);
	hog.cellSize = Size(8, 8);
	hog.blockStride = Size(8, 8);
	hog.compute(img, ders, Size(64, 64), Size(0, 0), locs);
	//size = 1764 = (64/8-1)^2 * 2^2 * 9
//	fout << ders.size() << "\n";
	for(std::vector<float>::iterator it = ders.begin(); it != ders.end();it++) {
		fout << *it << " ";
	}

//	Hogfeat.create(ders.size(), 1, CV_32FC1);
//	for (int i = 0; i < ders.size(); i++) {
//		Hogfeat.at<float>(i, 0) = ders.at(i);
//	}
//	fout << Hogfeat << endl;

	tend();
	t1 = tval();
	printf("time\t:\t%f\n", t1);
	cv::imwrite(argv[1],img);
	
	return 0;
}