imageOperations.h

/*
 * Copyright © 2017--2018 Stefan Kebekus <stefan.kebekus@math.uni-freiburg.de>
 *
 * 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 3 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/>.
 */
 
 
#ifndef imageOPERATIONS
#define imageOPERATIONS 1
 
#include <QImage>
#include <QSet>
 
 
namespace imageOperations
{
  QImage deAlpha(const QImage &image, QRgb background=0xFFFFFFFF);
 
  QVector<QRgb> colors(const QImage &image);
  
  bool isBlackAndWhite(const QImage &image);
  
  bool isOpaque(const QImage &image);
 
  QImage optimizedFormat(const QImage &inputImage);
  
  QImage simplifyTransparentPixels(const QImage &image);
 
  enum imageDataFilter {
    identity,
 
    PNG
  };
  
  QByteArray QImageToData(const QImage &image, imageDataFilter filter=identity);
  
  QImage DataToQImage(const QByteArray &data, int width, int height, QImage::Format format, imageDataFilter filter=identity);
};
 
#endif