staticSignal.h

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// This software is distributed as part of the Improla library. 
// Improla is a library of classes 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    : 21st September 2004
// Author           : Siva Chandra
// Purpose          : Declares a class which performs a max-diff gradient operation on a 
//                    gray-scale image.

#ifndef __STATIC_SIGNAL_H__
#define __STATIC_SIGNAL_H__

#include <icomplex.h>
#include <cstdlib>

namespace sptk
{ // Start of namespace brace.

#ifndef STATIC_SIGNAL_LENGTH
#define STATIC_SIGNAL_LENGTH 100
#endif // SIGNAL_LENGTH

class StaticSignal
{
public:
    StaticSignal(void);
    
    StaticSignal(const int length);
    
    StaticSignal(const StaticSignal &s);
    
    ~StaticSignal();
    
    int getLength(void);
    
    double getEnergy(void);
    
    void dcShift(mutk::Complex &dcValue);
    
    mutk::Complex corr(int lag);
    
    void setValue(int n, const mutk::Complex &value);
    
    mutk::Complex getValue(int n);
    
    StaticSignal operator+(const StaticSignal s);
    
    StaticSignal operator-(const StaticSignal s);
    
    StaticSignal operator*(const StaticSignal s);
    
    void operator=(const StaticSignal s);
    
private:
    int *refCount, *length;

protected:
    mutk::Complex *data;
};
    
} // End of namespace brace.

#endif // __STATIC_SIGNAL_H__

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