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  #ifndef __OPENCV_VIDEOSTAB_DEBLURRING_HPP__
  #define __OPENCV_VIDEOSTAB_DEBLURRING_HPP__
  
  #include <vector>
  #include "opencv2/core/core.hpp"
  
  namespace cv
  {
  namespace videostab
  {
  
  CV_EXPORTS float calcBlurriness(const Mat &frame);
  
  class CV_EXPORTS DeblurerBase
  {
  public:
      DeblurerBase() : radius_(0), frames_(0), motions_(0), blurrinessRates_(0) {}
  
      virtual ~DeblurerBase() {}
  
      virtual void setRadius(int val) { radius_ = val; }
      virtual int radius() const { return radius_; }
  
      virtual void deblur(int idx, Mat &frame) = 0;
  
  
      // data from stabilizer
  
      virtual void setFrames(const std::vector<Mat> &val) { frames_ = &val; }
      virtual const std::vector<Mat>& frames() const { return *frames_; }
  
      virtual void setMotions(const std::vector<Mat> &val) { motions_ = &val; }
      virtual const std::vector<Mat>& motions() const { return *motions_; }
  
      virtual void setBlurrinessRates(const std::vector<float> &val) { blurrinessRates_ = &val; }
      virtual const std::vector<float>& blurrinessRates() const { return *blurrinessRates_; }
  
  protected:
      int radius_;
      const std::vector<Mat> *frames_;
      const std::vector<Mat> *motions_;
      const std::vector<float> *blurrinessRates_;
  };
  
  class CV_EXPORTS NullDeblurer : public DeblurerBase
  {
  public:
      virtual void deblur(int /*idx*/, Mat &/*frame*/) {}
  };
  
  class CV_EXPORTS WeightingDeblurer : public DeblurerBase
  {
  public:
      WeightingDeblurer();
  
      void setSensitivity(float val) { sensitivity_ = val; }
      float sensitivity() const { return sensitivity_; }
  
      virtual void deblur(int idx, Mat &frame);
  
  private:
      float sensitivity_;
      Mat_<float> bSum_, gSum_, rSum_, wSum_;
  };
  
  } // namespace videostab
  } // namespace cv
  
  #endif
  