text: #ifndef RECOGNIZER_H
  #define RECOGNIZER_H
  
  #include <QObject>
  #include "QPixmap"
  
  #include "ProcessingItem.h"
  
  namespace tesseract {
    class TessBaseAPI;
  }
  class RecognizerHelper;
  
  class Recognizer : public QObject {
    Q_OBJECT
  
    public:
      explicit Recognizer (QObject *parent = 0);
  
    signals:
      void recognized (ProcessingItem item);
      void error (QString text);
  
    public slots:
      void recognize (ProcessingItem item);
      void applySettings ();
  
    private:
      bool initEngine (tesseract::TessBaseAPI * &engine, const QString &language);
  
    private:
      tesseract::TessBaseAPI *engine_;
      RecognizerHelper *recognizerHelper_;
  
      QString tessDataDir_;
      QString ocrLanguage_;
      int imageScale_;
  
  };
  
  #endif // RECOGNIZER_H
  