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/*
* Copyright (C) 2007 Valentin Ziegler, ExactCODE GmbH Germany.
* 2008 - 2009 Rene Rebe, ExactCODE GmbH Germany.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2. A copy of the GNU General
* Public License can be found in the file LICENSE.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANT-
* ABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* Alternatively, commercial licensing options are available from the
* copyright holder ExactCODE GmbH Germany.
*/
#ifndef CONTOURS_HH
#define CONTOURS_HH
#include "FG-Matrix.hh"
#include <vector>
// "outline" contours
class Contours
{
public:
typedef std::vector < std::pair<unsigned int, unsigned int> > Contour;
typedef DataMatrix<int> VisitMap;
typedef std::vector<Contour*>::iterator iterator;
Contours(const FGMatrix& image);
Contours() {} // empty constructor for generic usage
void clear ();
void scan (const FGMatrix& image);
~Contours();
std::vector <Contour*> contours;
};
// "midpoint of scanlines" inner storke /tracer/"
class MidContours : public Contours
{
public:
MidContours(const FGMatrix& image);
};
// "local maxima of neighbor distance to border"
class InnerContours : public Contours
{
typedef enum {LEFT, RIGHT, UP, DOWN} dir;
unsigned int RecursiveDist(const FGMatrix& image,
int x, int y,
dir d, unsigned int r);
bool RecursiveTrace(VisitMap& newmap, Contour* current,
unsigned int x, unsigned int y);
public:
InnerContours(const FGMatrix& image);
};
#endif // CONTOURS_HH
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