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FloydSteinberg.h

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/*
 * @(#)include/FloydSteinberg.h  1.0  2002-08-27 13:27
 *
 * Copyright (C)  2002  Daniel Léonard
 *
 * 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.
 */

#ifndef _FLOYD_STEINBERG_H_
#define _FLOYD_STEINBERG_H_

#include "ErrorDiffusionHalftoner.h"

namespace halftoner
{
   class FloydSteinberg : public ErrorDiffusionHalftoner
   {
      public:
         FloydSteinberg();

         ~FloydSteinberg();

      protected:

         int halftoneToRight(float* source, int i, int j, int offset, int width, int height, int threshold) throw();

         int halftoneToLeft(float* source, int i, int j, int offset, int width, int height, int threshold) throw();
   };

}

#endif   /* #ifndef _FLOYD_STEINBERG_H_ */

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