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ocr.h
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ocr.h
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/*
License: GPL-2
An electronic filing cabinet: scan, print, stack, arrange
Copyright (C) 2009 Simon Glass, chch-kiwi@users.sourceforge.net
.
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
X-Comment: On Debian GNU/Linux systems, the complete text of the GNU General
Public License can be found in the /usr/share/common-licenses/GPL file.
*/
/*
Project: Maxview
Author: Simon Glass
Copyright: 2001-2009 Bluewater Systems Ltd, www.bluewatersys.com
File: ocr.h
Started: 26/6/09
This file contains the OCR (Optical Character Recognition) interface
*/
#ifndef __ocr_h
#define __ocr_h
class QImage;
class QString;
class Ocr
{
public:
Ocr (void);
virtual ~Ocr ();
//! engine in use
enum e_engine
{
OCRE_none,
OCRE_tesseract,
OCRE_omnipage
};
/** convert an image to text */
virtual err_info *imageToText (QImage &image, QString &text) = 0;
virtual err_info *init (void) = 0;
/** sets up the best available Ocr engine and returns it
\param err error returned, NULL if ok
\returns ocr engine, or 0 if none could be found */
static Ocr *getOcr (err_info *&err);
protected:
e_engine _engine; //!< ocr engine we are using
};
#endif