text: #ifndef BRIGHTNESS_H
  #define BRIGHTNESS_H
  
  #include <QObject>
  
  #include "imageeffect.h"
  
  class Brightness : public QObject, public ImageEffect
  {
      Q_OBJECT
  public:
      explicit Brightness(QObject *parent = 0);
      ~Brightness() {}
      QImage *apply(QImage *orig);
  signals:
  
  public slots:
  
  };
  
  #endif // BRIGHTNESS_H
  