mr_lag.h

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/* The Partitions Musics Recognition System project.
 * (c)2003 by Fabien Pelisson (fabien dot pelisson at wanadoo dot fr)
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef MR_LAG_H
#define MR_LAG_H

#include <mr_vector.h>
#include <mr_image.h>

#include <mr_lag_segment.h>
#include <mr_lag_section.h>
#include <mr_lag_junction.h>
#include <mr_lag_component.h>

#include <mr_line.h>

#ifdef __cplusplus
extern              "C"
{
#endif /* __cplusplus */

typedef struct MrLag MrLag;

struct MrLag
{
  MrVector* segments;
  MrVector* sections;
  MrVector* junctions;
  MrVector* filaments;
  MrVector* chains;

  unsigned int w;
  unsigned int h;

  unsigned int staff_line_thickness;
  unsigned int staff_spacing;
};


  
MrLag* mr_lag_new(unsigned int w, unsigned int h);

void mr_lag_free(void *p);


short int mr_lag_extract_segments(MrLag*, MrImage*);
void mr_lag_build_lag(MrLag* lag);
void mr_lag_filament_detection(MrLag* lag);
void mr_lag_build_chain(MrLag* lag);
void mr_lag_build_staff_line(MrLag* lag, MrVector* lines);
void mr_lag_remove_filaments_in_staff_line(MrLag* lag, unsigned int y);
void mr_lag_remove_filaments_in_staff_lines(MrLag* lag, MrVector* lines);

void mr_lag_bar_detection(MrImage* image, MrLine* bb);

void mr_lag_extract_component(MrLag* lag, MrVector* components);


void mr_lag_add_segment(MrLag* lag, MrLagSegment* segment, unsigned int j);
MrLagSection* mr_lag_add_section(MrLag* lag, MrLagSegment* segment);
MrLagJunction* mr_lag_create_junction(MrLag* lag, 
                                      MrLagSection* left_section,
                                      MrLagSection* right_section);
unsigned int length_chain(MrVector* chain);

unsigned int mr_lag_chain_horizontal_line(MrVector* chain); 

void mr_lag_remove_sections_on_image(MrLag* lag, MrImage* img);
void mr_lag_remove_section_on_image(MrLag* lag, MrLagSection* section, MrImage* img);
void mr_lag_remove_segment_on_image(MrLag* lag, MrLagSegment* segment, MrImage* img);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* MR_LAG_H */

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