Diff: include/opencv2/flann/miniflann.hpp

Revision:

0:0e0631af0305

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/opencv2/flann/miniflann.hpp	Fri Jan 29 04:53:38 2021 +0000
@@ -0,0 +1,158 @@
+/*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, 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_MINIFLANN_HPP
+#define OPENCV_MINIFLANN_HPP
+
+#include "opencv2/core.hpp"
+#include "opencv2/flann/defines.h"
+
+namespace cv
+{
+
+namespace flann
+{
+
+struct CV_EXPORTS IndexParams
+{
+    IndexParams();
+    ~IndexParams();
+
+    String getString(const String& key, const String& defaultVal=String()) const;
+    int getInt(const String& key, int defaultVal=-1) const;
+    double getDouble(const String& key, double defaultVal=-1) const;
+
+    void setString(const String& key, const String& value);
+    void setInt(const String& key, int value);
+    void setDouble(const String& key, double value);
+    void setFloat(const String& key, float value);
+    void setBool(const String& key, bool value);
+    void setAlgorithm(int value);
+
+    void getAll(std::vector<String>& names,
+                std::vector<int>& types,
+                std::vector<String>& strValues,
+                std::vector<double>& numValues) const;
+
+    void* params;
+};
+
+struct CV_EXPORTS KDTreeIndexParams : public IndexParams
+{
+    KDTreeIndexParams(int trees=4);
+};
+
+struct CV_EXPORTS LinearIndexParams : public IndexParams
+{
+    LinearIndexParams();
+};
+
+struct CV_EXPORTS CompositeIndexParams : public IndexParams
+{
+    CompositeIndexParams(int trees = 4, int branching = 32, int iterations = 11,
+                         cvflann::flann_centers_init_t centers_init = cvflann::FLANN_CENTERS_RANDOM, float cb_index = 0.2f );
+};
+
+struct CV_EXPORTS AutotunedIndexParams : public IndexParams
+{
+    AutotunedIndexParams(float target_precision = 0.8f, float build_weight = 0.01f,
+                         float memory_weight = 0, float sample_fraction = 0.1f);
+};
+
+struct CV_EXPORTS HierarchicalClusteringIndexParams : public IndexParams
+{
+    HierarchicalClusteringIndexParams(int branching = 32,
+                      cvflann::flann_centers_init_t centers_init = cvflann::FLANN_CENTERS_RANDOM, int trees = 4, int leaf_size = 100 );
+};
+
+struct CV_EXPORTS KMeansIndexParams : public IndexParams
+{
+    KMeansIndexParams(int branching = 32, int iterations = 11,
+                      cvflann::flann_centers_init_t centers_init = cvflann::FLANN_CENTERS_RANDOM, float cb_index = 0.2f );
+};
+
+struct CV_EXPORTS LshIndexParams : public IndexParams
+{
+    LshIndexParams(int table_number, int key_size, int multi_probe_level);
+};
+
+struct CV_EXPORTS SavedIndexParams : public IndexParams
+{
+    SavedIndexParams(const String& filename);
+};
+
+struct CV_EXPORTS SearchParams : public IndexParams
+{
+    SearchParams( int checks = 32, float eps = 0, bool sorted = true );
+};
+
+class CV_EXPORTS_W Index
+{
+public:
+    CV_WRAP Index();
+    CV_WRAP Index(InputArray features, const IndexParams& params, cvflann::flann_distance_t distType=cvflann::FLANN_DIST_L2);
+    virtual ~Index();
+
+    CV_WRAP virtual void build(InputArray features, const IndexParams& params, cvflann::flann_distance_t distType=cvflann::FLANN_DIST_L2);
+    CV_WRAP virtual void knnSearch(InputArray query, OutputArray indices,
+                   OutputArray dists, int knn, const SearchParams& params=SearchParams());
+
+    CV_WRAP virtual int radiusSearch(InputArray query, OutputArray indices,
+                             OutputArray dists, double radius, int maxResults,
+                             const SearchParams& params=SearchParams());
+
+    CV_WRAP virtual void save(const String& filename) const;
+    CV_WRAP virtual bool load(InputArray features, const String& filename);
+    CV_WRAP virtual void release();
+    CV_WRAP cvflann::flann_distance_t getDistance() const;
+    CV_WRAP cvflann::flann_algorithm_t getAlgorithm() const;
+
+protected:
+    cvflann::flann_distance_t distType;
+    cvflann::flann_algorithm_t algo;
+    int featureType;
+    void* index;
+};
+
+} } // namespace cv::flann
+
+#endif