sanei_magic.h

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/* sane - Scanner Access Now Easy.
 
   Copyright (C) 2009 m. allan noah
 
   This file is part of the SANE package.
 
   SANE 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.
 
   SANE 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 sane; see the file COPYING.
   If not, see <https://www.gnu.org/licenses/>.
 
   As a special exception, the authors of SANE give permission for
   additional uses of the libraries contained in this release of SANE.
 
   The exception is that, if you link a SANE library with other files
   to produce an executable, this does not by itself cause the
   resulting executable to be covered by the GNU General Public
   License.  Your use of that executable is in no way restricted on
   account of linking the SANE library code into it.
 
   This exception does not, however, invalidate any other reasons why
   the executable file might be covered by the GNU General Public
   License.
 
   If you submit changes to SANE to the maintainers to be included in
   a subsequent release, you agree by submitting the changes that
   those changes may be distributed with this exception intact.
 
   If you write modifications of your own for SANE, it is your choice
   whether to permit this exception to apply to your modifications.
   If you do not wish that, delete this exception notice.
*/
 
#ifndef SANEI_MAGIC_H
#define SANEI_MAGIC_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
extern void sanei_magic_init( void );
 
extern SANE_Status
sanei_magic_despeck (SANE_Parameters * params, SANE_Byte * buffer,
  SANE_Int diam);
 
extern SANE_Status
sanei_magic_findSkew(SANE_Parameters * params, SANE_Byte * buffer,
  int dpiX, int dpiY, int * centerX, int * centerY, double * finSlope);
 
extern SANE_Status
sanei_magic_rotate (SANE_Parameters * params, SANE_Byte * buffer,
  int centerX, int centerY, double slope, int bg_color);
 
extern SANE_Status
sanei_magic_findEdges(SANE_Parameters * params, SANE_Byte * buffer,
  int dpiX, int dpiY, int * top, int * bot, int * left, int * right);
 
extern SANE_Status
sanei_magic_crop(SANE_Parameters * params, SANE_Byte * buffer,
  int top, int bot, int left, int right);
 
extern SANE_Status
sanei_magic_isBlank(SANE_Parameters * params, SANE_Byte * buffer,
  double thresh);
 
extern SANE_Status
sanei_magic_isBlank2(SANE_Parameters * params, SANE_Byte * buffer,
  int dpiX, int dpiY, double thresh);
 
extern SANE_Status
sanei_magic_findTurn(SANE_Parameters * params, SANE_Byte * buffer,
  int dpiX, int dpiY, int * angle);
 
extern SANE_Status
sanei_magic_turn(SANE_Parameters * params, SANE_Byte * buffer,
  int angle);
 
#ifdef __cplusplus
} // extern "C"
#endif
 
#endif /* SANEI_MAGIC_H */