image.h

// 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

#ifndef __IMAGE_H__
#define __IMAGE_H__

#include <size.h>
#include <point.h>
#include <tntVector.h>

namespace iptk
{ // Start of namespace brace.

enum BitDepth 
{
    GRAY_SCALE, 
    
    RGB 
};   

enum ColourLayer 
{
    INTENSITY_LAYER, 
    
    RED_LAYER, 
    
    GREEN_LAYER, 
    
    BLUE_LAYER
};

class Image
{
public:
    Image(void); 
    
    Image(int width, int height, BitDepth bd); 
    
    Image(const Image &im); 
    
    virtual ~Image(); 
    
    virtual void loadFile(const char *fileName); 
    
    virtual void saveFile(const char *fileName); 
    
    void rgb2gray(void);
    
    gutk::Size getSize(void);
    
    double getRed(const gutk::Point &p);
    
    double getRed(int n, int m);
    
    double getGreen(const gutk::Point &p);
    
    double getGreen(int n, int m);
    
    double getBlue(const gutk::Point &p);
    
    double getBlue(int n, int m);
    
    double getIntensity(const gutk::Point &p); 
    
    double getIntensity(int n, int m); 
    
    void setRed(const gutk::Point &p, const double v);
    
    void setRed(int n, int m, const double v);
    
    void setGreen(const gutk::Point &p, const double v);
    
    void setGreen(int n, int m, const double v);
    
    void setBlue(const gutk::Point &p, const double v);
    
    void setBlue(int n, int m, const double v);
    
    void setIntensity(const gutk::Point &p, const double v); 
    
    void setIntensity(int n, int m, const double v); 
    
    BitDepth getDepth(void);
    
    mutk::Vector getHistogram(ColourLayer layer);
    
    void getMaxPixel(ColourLayer layer, gutk::Point &p, double &val);
    
    void getMinPixel(ColourLayer layer, gutk::Point &p, double &val);
    
    void adjustIntensity(void);
    
    virtual void operator=(const Image &im);
    
private:
    BitDepth *depth;
    int *refCount;
    gutk::Size *size;
    
    double *Red;   // Use this array if the you are using an RGB image.
    double *Green; // Use this array if the you are using an RGB image.
    double *Blue;  // Use this array if the you are using an RGB image.
    
    double *Intensity; // Use this array if you are using an GRAY_SCALE image.
};    

} // End of namespace brace.

#endif // __IMAGE_H__

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