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Please, include this header before any Apple headers. 48 #endif 49 50 #include "opencv2/core.hpp" 51 52 namespace cv { 53 namespace detail { 54 55 //! @addtogroup stitching_exposure 56 //! @{ 57 58 /** @brief Base class for all exposure compensators. 59 */ 60 class CV_EXPORTS ExposureCompensator 61 { 62 public: ~ExposureCompensator()63 virtual ~ExposureCompensator() {} 64 65 enum { NO, GAIN, GAIN_BLOCKS }; 66 static Ptr<ExposureCompensator> createDefault(int type); 67 68 /** 69 @param corners Source image top-left corners 70 @param images Source images 71 @param masks Image masks to update (second value in pair specifies the value which should be used 72 to detect where image is) 73 */ 74 void feed(const std::vector<Point> &corners, const std::vector<UMat> &images, 75 const std::vector<UMat> &masks); 76 /** @overload */ 77 virtual void feed(const std::vector<Point> &corners, const std::vector<UMat> &images, 78 const std::vector<std::pair<UMat,uchar> > &masks) = 0; 79 /** @brief Compensate exposure in the specified image. 80 81 @param index Image index 82 @param corner Image top-left corner 83 @param image Image to process 84 @param mask Image mask 85 */ 86 virtual void apply(int index, Point corner, InputOutputArray image, InputArray mask) = 0; 87 }; 88 89 /** @brief Stub exposure compensator which does nothing. 90 */ 91 class CV_EXPORTS NoExposureCompensator : public ExposureCompensator 92 { 93 public: feed(const std::vector<Point> &,const std::vector<UMat> &,const std::vector<std::pair<UMat,uchar>> &)94 void feed(const std::vector<Point> &/*corners*/, const std::vector<UMat> &/*images*/, 95 const std::vector<std::pair<UMat,uchar> > &/*masks*/) CV_OVERRIDE { } apply(int,Point,InputOutputArray,InputArray)96 void apply(int /*index*/, Point /*corner*/, InputOutputArray /*image*/, InputArray /*mask*/) CV_OVERRIDE { } 97 }; 98 99 /** @brief Exposure compensator which tries to remove exposure related artifacts by adjusting image 100 intensities, see @cite BL07 and @cite WJ10 for details. 101 */ 102 class CV_EXPORTS GainCompensator : public ExposureCompensator 103 { 104 public: 105 void feed(const std::vector<Point> &corners, const std::vector<UMat> &images, 106 const std::vector<std::pair<UMat,uchar> > &masks) CV_OVERRIDE; 107 void apply(int index, Point corner, InputOutputArray image, InputArray mask) CV_OVERRIDE; 108 std::vector<double> gains() const; 109 110 private: 111 Mat_<double> gains_; 112 }; 113 114 /** @brief Exposure compensator which tries to remove exposure related artifacts by adjusting image block 115 intensities, see @cite UES01 for details. 116 */ 117 class CV_EXPORTS BlocksGainCompensator : public ExposureCompensator 118 { 119 public: BlocksGainCompensator(int bl_width=32,int bl_height=32)120 BlocksGainCompensator(int bl_width = 32, int bl_height = 32) 121 : bl_width_(bl_width), bl_height_(bl_height) {} 122 void feed(const std::vector<Point> &corners, const std::vector<UMat> &images, 123 const std::vector<std::pair<UMat,uchar> > &masks) CV_OVERRIDE; 124 void apply(int index, Point corner, InputOutputArray image, InputArray mask) CV_OVERRIDE; 125 126 private: 127 int bl_width_, bl_height_; 128 std::vector<UMat> gain_maps_; 129 }; 130 131 //! @} 132 133 } // namespace detail 134 } // namespace cv 135 136 #endif // OPENCV_STITCHING_EXPOSURE_COMPENSATE_HPP 137