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#ifndef __OPENCV_EXPOSURE_COMPENSATE_HPP__
#define __OPENCV_EXPOSURE_COMPENSATE_HPP__

#include "precomp.hpp"


class ExposureCompensator
{
public:
    enum { NO, OVERLAP, SEGMENT };
    static cv::Ptr<ExposureCompensator> createDefault(int type);

    void feed(const std::vector<cv::Point> &corners, const std::vector<cv::Mat> &images, 
              const std::vector<cv::Mat> &masks);
    virtual void feed(const std::vector<cv::Point> &corners, const std::vector<cv::Mat> &images, 
                      const std::vector<std::pair<cv::Mat,uchar> > &masks) = 0;
    virtual void apply(int index, cv::Point corner, cv::Mat &image, const cv::Mat &mask) = 0;
};


class NoExposureCompensator : public ExposureCompensator
{
public:
    void feed(const std::vector<cv::Point> &/*corners*/, const std::vector<cv::Mat> &/*images*/, 
              const std::vector<std::pair<cv::Mat,uchar> > &/*masks*/) {};
    void apply(int /*index*/, cv::Point /*corner*/, cv::Mat &/*image*/, const cv::Mat &/*mask*/) {};
};


class OverlapExposureCompensator : public ExposureCompensator
{
public:
    void feed(const std::vector<cv::Point> &corners, const std::vector<cv::Mat> &images, 
              const std::vector<std::pair<cv::Mat,uchar> > &masks);
    void apply(int index, cv::Point corner, cv::Mat &image, const cv::Mat &mask);

    cv::Mat_<double> gains;
};

#endif // __OPENCV_EXPOSURE_COMPENSATE_HPP__