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+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
+// Copyright (C) 2009-2011, Willow Garage Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#ifndef OPENCV_VIDEOSTAB_FAST_MARCHING_HPP
+#define OPENCV_VIDEOSTAB_FAST_MARCHING_HPP
+
+#include <cmath>
+#include <queue>
+#include <algorithm>
+#include "opencv2/core.hpp"
+
+namespace cv
+{
+namespace videostab
+{
+
+//! @addtogroup videostab_marching
+//! @{
+
+/** @brief Describes the Fast Marching Method implementation.
+
+  See http://iwi.eldoc.ub.rug.nl/FILES/root/2004/JGraphToolsTelea/2004JGraphToolsTelea.pdf
+ */
+class CV_EXPORTS FastMarchingMethod
+{
+public:
+    FastMarchingMethod() : inf_(1e6f) {}
+
+    /** @brief Template method that runs the Fast Marching Method.
+
+    @param mask Image mask. 0 value indicates that the pixel value must be inpainted, 255 indicates
+    that the pixel value is known, other values aren't acceptable.
+    @param inpaint Inpainting functor that overloads void operator ()(int x, int y).
+    @return Inpainting functor.
+     */
+    template <typename Inpaint>
+    Inpaint run(const Mat &mask, Inpaint inpaint);
+
+    /**
+    @return Distance map that's created during working of the method.
+    */
+    Mat distanceMap() const { return dist_; }
+
+private:
+    enum { INSIDE = 0, BAND = 1, KNOWN = 255 };
+
+    struct DXY
+    {
+        float dist;
+        int x, y;
+
+        DXY() : dist(0), x(0), y(0) {}
+        DXY(float _dist, int _x, int _y) : dist(_dist), x(_x), y(_y) {}
+        bool operator <(const DXY &dxy) const { return dist < dxy.dist; }
+    };
+
+    float solve(int x1, int y1, int x2, int y2) const;
+    int& indexOf(const DXY &dxy) { return index_(dxy.y, dxy.x); }
+
+    void heapUp(int idx);
+    void heapDown(int idx);
+    void heapAdd(const DXY &dxy);
+    void heapRemoveMin();
+
+    float inf_;
+
+    cv::Mat_<uchar> flag_; // flag map
+    cv::Mat_<float> dist_; // distance map
+
+    cv::Mat_<int> index_; // index of point in the narrow band
+    std::vector<DXY> narrowBand_; // narrow band heap
+    int size_; // narrow band size
+};
+
+//! @}
+
+} // namespace videostab
+} // namespace cv
+
+#include "fast_marching_inl.hpp"
+
+#endif