#include "Rcpp.h"

#include <opencv2/opencv.hpp>

#include "opencv2/xfeatures2d.hpp"

#include "opencv2/features2d.hpp"

#include "opencv2/shape/shape_transformer.hpp"

#ifndef AUXILIARY_H

#define AUXILIARY_H

////

// replace NAs in matrices

////

Rcpp::NumericMatrix replaceNaMatrix(Rcpp::NumericMatrix mat, int replace);

////

// Conversion

////

// cv::Mat vs Rcpp::RawVector(Image)

Rcpp::RawVector matToImage(cv::Mat mat);

cv::Mat imageToMat(Rcpp::RawVector image_data, int width, int height);

// cv::Mat vs Rcpp::NumericMatrix 

cv::Mat numericMatrixToMat(Rcpp::NumericMatrix nm);

Rcpp::NumericMatrix matToNumericMatrix(cv::Mat m);

// std::vector<cv::Point2f> vs Rcpp::NumericMatrix

std::vector<cv::Point2f> numericMatrixToPoint2f(Rcpp::NumericMatrix mat);

Rcpp::NumericMatrix point2fToNumericMatrix(std::vector<cv::Point2f> points);

// std::vector<cv::Point2f> vs cv::Mat

std::vector<cv::Point2f> matToPoint2f(cv::Mat mat);

cv::Mat point2fToMat(std::vector<cv::Point2f> points);

// std::vector<double> vs std::vector<cv::Point2f>

std::vector<double> KeyPointToDoubleVector(std::vector<cv::KeyPoint> points);

std::vector<double> Point2fToDoubleVector(std::vector<cv::Point2f> points);

////

// validation

////

// standard deviation

double cppSD(std::vector<cv::KeyPoint> points);

double cppSD(std::vector<cv::Point2f> points);

#endif