imextrema.h

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// This software is distributed as part of the Improla library. 
// Improla is a GUI framework for image processing.
// 
// Copyright (c) 2004, B. R. Siva Chandra, India
//
// 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; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
// In case you would like to contact the author, use the following e-mail
// address: sivachandra_br@yahoo.com

// First Created    : 2nd October 2004
// Author           : Siva Chandra
// Purpose          : Declares a class used to extract the extrema in an image.

#ifndef __IM_EXTREMA_H__
#define __IM_EXTREMA_H__

#include <neighbourhoodStatisticsFilter.h>
#include <point.h>
#include <tlist.h>

namespace iptk
{ // Start of namespace brace.

class ImExtrema : public iptk::NeighbourhoodStatisticsFilter
{
public:
    ImExtrema(void);
    
    ImExtrema(const iptk::Image &im);
    
    ImExtrema(const ImExtrema &ip);
    
    virtual ~ImExtrema();
    
    virtual void process(void);
    
    iptk::Image getMaxImage(void);
    
    iptk::Image getMinImage(void);
    
    tutk::List< gutk::Point > getExtrema(void);
    
    tutk::List< gutk::Point > getMaxima(void);
    
    tutk::List< gutk::Point > getMinima(void);
    
private:
    iptk::Image maxIm, minIm;
    tutk::List< gutk::Point > extList, maxList, minList;
};    
    
} // End of namespace brace.

#endif // __IM_EXTREMA_H__

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