utils.h

#ifndef UTILS_H
#define UTILS_H
#include <opencv2/opencv.hpp>
#include <vector>
#include <iostream>
#include <fstream>
#include "liblinear/linear.h"
#include <stdio.h>
#include <sys/time.h>
//#include <thread>
//#include <mutex>
// #include <atomic>
//using namespace std;
//using namespace cv;

//std::mutex m;
class BoundingBox {
public:
	double start_x;
	double start_y;
	double width;
	double height;
	double center_x;
	double center_y;
	BoundingBox(){
		start_x = 0;
		start_y = 0;
		width = 0;
		height = 0;
		center_x = 0;
		center_y = 0;
	}
};

class FeatureLocations
{
public:
	cv::Point2d start;
	cv::Point2d end;
	FeatureLocations(cv::Point2d a, cv::Point2d b){
		start = a;
		end = b;
	}
	FeatureLocations(){
		start = cv::Point2d(0.0, 0.0);
		end = cv::Point2d(0.0, 0.0);
	};
};

class Parameters {
	//private:
public:
	int local_features_num_;
	int landmarks_num_per_face_;
	int regressor_stages_;
	int tree_depth_;
	int trees_num_per_forest_;
	std::vector<double> local_radius_by_stage_;
	int initial_guess_;
	cv::Mat_<double> mean_shape_;
};

cv::Mat_<double> ProjectShape(const cv::Mat_<double>& shape, const BoundingBox& bbox);
cv::Mat_<double> ReProjection(const cv::Mat_<double>& shape, const BoundingBox& bbox);
cv::Mat_<double> GetMeanShape(const std::vector<cv::Mat_<double> >& all_shapes,
	const std::vector<BoundingBox>& all_bboxes);
void getSimilarityTransform(const cv::Mat_<double>& shape_to,
	const cv::Mat_<double>& shape_from,
	cv::Mat_<double>& rotation, double& scale);

//cv::Mat_<double> LoadGroundTruthShape(std::string& name);
cv::Mat_<double> LoadGroundTruthShape(const char* name);

void LoadImages(std::vector<cv::Mat_<uchar> >& images, std::vector<cv::Mat_<double> >& ground_truth_shapes,
	std::vector<BoundingBox>& bboxes, std::string file_names);

bool ShapeInRect(cv::Mat_<double>& ground_truth_shape, cv::Rect&);

std::vector<cv::Rect_<int> > DetectFaces(cv::Mat_<uchar>& image);
std::vector<cv::Rect> DetectFaces(cv::Mat_<uchar>& image, cv::CascadeClassifier& classifier);

double CalculateError(cv::Mat_<double>& ground_truth_shape, cv::Mat_<double>& predicted_shape);

void DrawPredictImage(cv::Mat_<uchar>& image, cv::Mat_<double>& shapes);

BoundingBox GetBoundingBox(cv::Mat_<double>& shape, int width, int height);

#endif