root/modules/videostab/include/opencv2/videostab/motion_stabilizing.hpp

INCLUDED FROM

DEFINITIONS

1. pushBack
2. empty
3. radius
4. stdev
5. setMotionModel
6. motionModel
7. setFrameSize
8. frameSize
9. setTrimRatio
10. trimRatio
11. setWeight1
12. weight1
13. setWeight2
14. weight2
15. setWeight3
16. weight3
17. setWeight4
18. weight4
19. set

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#ifndef __OPENCV_VIDEOSTAB_MOTION_STABILIZING_HPP__
#define __OPENCV_VIDEOSTAB_MOTION_STABILIZING_HPP__

#include <vector>
#include <utility>
#include "opencv2/core.hpp"
#include "opencv2/videostab/global_motion.hpp"

namespace cv
{
namespace videostab
{

//! @addtogroup videostab_motion
//! @{

class CV_EXPORTS IMotionStabilizer
{
public:
    virtual ~IMotionStabilizer() {}

    //! assumes that [0, size-1) is in or equals to [range.first, range.second)
    virtual void stabilize(
            int size, const std::vector<Mat> &motions, std::pair<int,int> range,
            Mat *stabilizationMotions) = 0;
};

class CV_EXPORTS MotionStabilizationPipeline : public IMotionStabilizer
{
public:
    void pushBack(Ptr<IMotionStabilizer> stabilizer) { stabilizers_.push_back(stabilizer); }
    bool empty() const { return stabilizers_.empty(); }

    virtual void stabilize(
            int size, const std::vector<Mat> &motions, std::pair<int,int> range,
            Mat *stabilizationMotions);

private:
    std::vector<Ptr<IMotionStabilizer> > stabilizers_;
};

class CV_EXPORTS MotionFilterBase : public IMotionStabilizer
{
public:
    virtual ~MotionFilterBase() {}

    virtual Mat stabilize(
            int idx, const std::vector<Mat> &motions, std::pair<int,int> range) = 0;

    virtual void stabilize(
            int size, const std::vector<Mat> &motions, std::pair<int,int> range,
            Mat *stabilizationMotions);
};

class CV_EXPORTS GaussianMotionFilter : public MotionFilterBase
{
public:
    GaussianMotionFilter(int radius = 15, float stdev = -1.f);

    void setParams(int radius, float stdev = -1.f);
    int radius() const { return radius_; }
    float stdev() const { return stdev_; }

    virtual Mat stabilize(
            int idx, const std::vector<Mat> &motions, std::pair<int,int> range);

private:
    int radius_;
    float stdev_;
    std::vector<float> weight_;
};

inline GaussianMotionFilter::GaussianMotionFilter(int _radius, float _stdev) { setParams(_radius, _stdev); }

class CV_EXPORTS LpMotionStabilizer : public IMotionStabilizer
{
public:
    LpMotionStabilizer(MotionModel model = MM_SIMILARITY);

    void setMotionModel(MotionModel val) { model_ = val; }
    MotionModel motionModel() const { return model_; }

    void setFrameSize(Size val) { frameSize_ = val; }
    Size frameSize() const { return frameSize_; }

    void setTrimRatio(float val) { trimRatio_ = val; }
    float trimRatio() const { return trimRatio_; }

    void setWeight1(float val) { w1_ = val; }
    float weight1() const { return w1_; }

    void setWeight2(float val) { w2_ = val; }
    float weight2() const { return w2_; }

    void setWeight3(float val) { w3_ = val; }
    float weight3() const { return w3_; }

    void setWeight4(float val) { w4_ = val; }
    float weight4() const { return w4_; }

    virtual void stabilize(
            int size, const std::vector<Mat> &motions, std::pair<int,int> range,
            Mat *stabilizationMotions);

private:
    MotionModel model_;
    Size frameSize_;
    float trimRatio_;
    float w1_, w2_, w3_, w4_;

    std::vector<double> obj_, collb_, colub_;
    std::vector<int> rows_, cols_;
    std::vector<double> elems_, rowlb_, rowub_;

    void set(int row, int col, double coef)
    {
        rows_.push_back(row);
        cols_.push_back(col);
        elems_.push_back(coef);
    }
};

CV_EXPORTS Mat ensureInclusionConstraint(const Mat &M, Size size, float trimRatio);

CV_EXPORTS float estimateOptimalTrimRatio(const Mat &M, Size size);

//! @}

} // namespace videostab
} // namespace

#endif