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dependency/opencv/opencv-linux-aarch64/include/opencv2/videostab/motion_stabilizing.hpp

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+/*M///////////////////////////////////////////////////////////////////////////////////////
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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) CV_OVERRIDE;
+
+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) CV_OVERRIDE;
+};
+
+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) CV_OVERRIDE;
+
+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) CV_OVERRIDE;
+
+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