PGMImage.h

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/* Import from Gabor API

Copyright (c) 2002-3 Adriaan Tijsseling


                             All Rights Reserved

    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, see <http://www.gnu.org/licenses/>.
*/

/*
        Description:            class for reading and storing pgm images
        Author:                         Adriaan Tijsseling ( AGT )
        Copyright:                      ( c ) Copyright 2002-3 Adriaan Tijsseling. All rights reserved.
*/

#ifndef __PGM_IMAGE_CLASS__
#define __PGM_IMAGE_CLASS__

#include "ImageFile.h"
#include <cstring>

namespace celeste
{
class PGMImage : public ImageFile
{
public:

        PGMImage(){};
        explicit PGMImage( char* file ) { Read( file ); }
        virtual ~PGMImage(){};

        // Read a PGM image from a file
        int     Read( char* );

        // Write a PGM image in a file
        void    Write( char* );
        void    Write( char*, float**, int, int );
        void    Write( char*, float***, int, int );
        void    Write( char*, float**, int, int, int );
        void    WriteScaled( char* filename, float** output, int height, int width );

private:
        char    mMagicNumber[2];
        int     mNumPixels;             // Total number of pixels (mHeight x mWidth)
        int             mNumLevels;
        int             mNumBits;
};
}; //namespace
#endif // __PGM_IMAGE_CLASS__