Open Source Computer Vision Library https://opencv.org/
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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, 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.
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// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
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// This software is provided by the copyright holders and contributors "as is" and
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// 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;
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// and on any theory of liability, whether in contract, strict liability,
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//M*/
#ifndef __OPENCV_STITCHING_UTIL_HPP__
#define __OPENCV_STITCHING_UTIL_HPP__
#include <list>
#include "precomp.hpp"
#define ENABLE_LOG 1
#if ENABLE_LOG
#include <iostream>
#define LOG(msg) std::cout << msg;
#else
#define LOG(msg)
#endif
#define LOGLN(msg) LOG(msg << std::endl)
class DjSets
{
public:
DjSets(int n = 0) { create(n); }
void create(int n);
int find(int elem);
int merge(int set1, int set2);
std::vector<int> parent;
std::vector<int> size;
private:
std::vector<int> rank_;
};
struct GraphEdge
{
GraphEdge(int from, int to, float weight)
: from(from), to(to), weight(weight) {}
bool operator <(const GraphEdge& other) const { return weight < other.weight; }
bool operator >(const GraphEdge& other) const { return weight > other.weight; }
int from, to;
float weight;
};
class Graph
{
public:
Graph(int num_vertices = 0) { create(num_vertices); }
void create(int num_vertices) { edges_.assign(num_vertices, std::list<GraphEdge>()); }
int numVertices() const { return static_cast<int>(edges_.size()); }
void addEdge(int from, int to, float weight);
template <typename B>
B forEach(B body) const;
template <typename B>
B walkBreadthFirst(int from, B body) const;
private:
std::vector< std::list<GraphEdge> > edges_;
};
#include "util_inl.hpp"
#endif // __OPENCV_STITCHING_UTIL_HPP__