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- /* This file is part of the KDE libraries
- Copyright (C) 1997 Martin Jones (mjones@kde.org)
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
- */
- //-----------------------------------------------------------------------------
- //
- // Floyd-Steinberg dithering
- // Ref: Bitmapped Graphics Programming in C++
- // Marv Luse, Addison-Wesley Publishing, 1993.
- //
-
- #ifndef __DITHER_H__
- #define __DITHER_H__
-
- #include <qimage.h>
-
- /**
- * Allows Floyd-Steinberg dithering for low-colour situations.
- * @short Floyd-Steinberg dithering.
- * @version $Id: dither.h,v 1.1 1998/04/25 13:15:27 mark Exp $
- * @author Marv Luse (tm Addison Wesley Publishing)
- */
- class kFSDither
- {
- public:
- /**
- */
- kFSDither( const QColor *pal, int pSize );
-
- /**
- */
- QImage dither( const QImage &i );
-
- private:
- /**
- */
- int nearestColor( int r, int g, int b );
-
- private:
- /**
- */
- const QColor *palette;
- /**
- */
- int palSize;
- };
-
- #endif // __DITHER_H__
-
-