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util.hpp
00001 /*M/////////////////////////////////////////////////////////////////////////////////////// 00002 // 00003 // IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. 00004 // 00005 // By downloading, copying, installing or using the software you agree to this license. 00006 // If you do not agree to this license, do not download, install, 00007 // copy or use the software. 00008 // 00009 // 00010 // License Agreement 00011 // For Open Source Computer Vision Library 00012 // 00013 // Copyright (C) 2000-2008, Intel Corporation, all rights reserved. 00014 // Copyright (C) 2009, Willow Garage Inc., all rights reserved. 00015 // Third party copyrights are property of their respective owners. 00016 // 00017 // Redistribution and use in source and binary forms, with or without modification, 00018 // are permitted provided that the following conditions are met: 00019 // 00020 // * Redistribution's of source code must retain the above copyright notice, 00021 // this list of conditions and the following disclaimer. 00022 // 00023 // * Redistribution's in binary form must reproduce the above copyright notice, 00024 // this list of conditions and the following disclaimer in the documentation 00025 // and/or other materials provided with the distribution. 00026 // 00027 // * The name of the copyright holders may not be used to endorse or promote products 00028 // derived from this software without specific prior written permission. 00029 // 00030 // This software is provided by the copyright holders and contributors "as is" and 00031 // any express or implied warranties, including, but not limited to, the implied 00032 // warranties of merchantability and fitness for a particular purpose are disclaimed. 00033 // In no event shall the Intel Corporation or contributors be liable for any direct, 00034 // indirect, incidental, special, exemplary, or consequential damages 00035 // (including, but not limited to, procurement of substitute goods or services; 00036 // loss of use, data, or profits; or business interruption) however caused 00037 // and on any theory of liability, whether in contract, strict liability, 00038 // or tort (including negligence or otherwise) arising in any way out of 00039 // the use of this software, even if advised of the possibility of such damage. 00040 // 00041 //M*/ 00042 00043 #ifndef __OPENCV_STITCHING_UTIL_HPP__ 00044 #define __OPENCV_STITCHING_UTIL_HPP__ 00045 00046 #include <list> 00047 #include "opencv2/core.hpp" 00048 00049 #ifndef ENABLE_LOG 00050 #define ENABLE_LOG 0 00051 #endif 00052 00053 // TODO remove LOG macros, add logging class 00054 #if ENABLE_LOG 00055 #ifdef ANDROID 00056 #include <iostream> 00057 #include <sstream> 00058 #include <android/log.h> 00059 #define LOG_STITCHING_MSG(msg) \ 00060 do { \ 00061 Stringstream _os; \ 00062 _os << msg; \ 00063 __android_log_print(ANDROID_LOG_DEBUG, "STITCHING", "%s", _os.str().c_str()); \ 00064 } while(0); 00065 #else 00066 #include <iostream> 00067 #define LOG_STITCHING_MSG(msg) for(;;) { std::cout << msg; std::cout.flush(); break; } 00068 #endif 00069 #else 00070 #define LOG_STITCHING_MSG(msg) 00071 #endif 00072 00073 #define LOG_(_level, _msg) \ 00074 for(;;) \ 00075 { \ 00076 using namespace std; \ 00077 if ((_level) >= ::cv::detail::stitchingLogLevel()) \ 00078 { \ 00079 LOG_STITCHING_MSG(_msg); \ 00080 } \ 00081 break; \ 00082 } 00083 00084 00085 #define LOG(msg) LOG_(1, msg) 00086 #define LOG_CHAT(msg) LOG_(0, msg) 00087 00088 #define LOGLN(msg) LOG(msg << std::endl) 00089 #define LOGLN_CHAT(msg) LOG_CHAT(msg << std::endl) 00090 00091 //#if DEBUG_LOG_CHAT 00092 // #define LOG_CHAT(msg) LOG(msg) 00093 // #define LOGLN_CHAT(msg) LOGLN(msg) 00094 //#else 00095 // #define LOG_CHAT(msg) do{}while(0) 00096 // #define LOGLN_CHAT(msg) do{}while(0) 00097 //#endif 00098 00099 namespace cv { 00100 namespace detail { 00101 00102 //! @addtogroup stitching 00103 //! @{ 00104 00105 class CV_EXPORTS DisjointSets 00106 { 00107 public: 00108 DisjointSets(int elem_count = 0) { createOneElemSets(elem_count); } 00109 00110 void createOneElemSets(int elem_count); 00111 int findSetByElem(int elem); 00112 int mergeSets(int set1, int set2); 00113 00114 std::vector<int> parent; 00115 std::vector<int> size; 00116 00117 private: 00118 std::vector<int> rank_; 00119 }; 00120 00121 00122 struct CV_EXPORTS GraphEdge 00123 { 00124 GraphEdge(int from, int to, float weight); 00125 bool operator <(const GraphEdge& other) const { return weight < other.weight; } 00126 bool operator >(const GraphEdge& other) const { return weight > other.weight; } 00127 00128 int from, to; 00129 float weight; 00130 }; 00131 00132 inline GraphEdge::GraphEdge(int _from, int _to, float _weight) : from(_from), to(_to), weight(_weight) {} 00133 00134 00135 class CV_EXPORTS Graph 00136 { 00137 public: 00138 Graph(int num_vertices = 0) { create(num_vertices); } 00139 void create(int num_vertices) { edges_.assign(num_vertices, std::list<GraphEdge>()); } 00140 int numVertices() const { return static_cast<int>(edges_.size()); } 00141 void addEdge(int from, int to, float weight); 00142 template <typename B> B forEach(B body) const; 00143 template <typename B> B walkBreadthFirst(int from, B body) const; 00144 00145 private: 00146 std::vector< std::list<GraphEdge> > edges_; 00147 }; 00148 00149 00150 ////////////////////////////////////////////////////////////////////////////// 00151 // Auxiliary functions 00152 00153 CV_EXPORTS bool overlapRoi(Point tl1, Point tl2, Size sz1, Size sz2, Rect &roi); 00154 CV_EXPORTS Rect resultRoi(const std::vector<Point> &corners, const std::vector<UMat> &images); 00155 CV_EXPORTS Rect resultRoi(const std::vector<Point> &corners, const std::vector<Size> &sizes); 00156 CV_EXPORTS Rect resultRoiIntersection(const std::vector<Point> &corners, const std::vector<Size> &sizes); 00157 CV_EXPORTS Point resultTl(const std::vector<Point> &corners); 00158 00159 // Returns random 'count' element subset of the {0,1,...,size-1} set 00160 CV_EXPORTS void selectRandomSubset(int count, int size, std::vector<int> &subset); 00161 00162 CV_EXPORTS int& stitchingLogLevel(); 00163 00164 //! @} 00165 00166 } // namespace detail 00167 } // namespace cv 00168 00169 #include "util_inl.hpp" 00170 00171 #endif // __OPENCV_STITCHING_UTIL_HPP__ 00172
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