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# ifndef BM_SEGMENTS_H
# define BM_SEGMENTS_H
# include <stdio.h>
# include <stddef.h>
# include <stdlib.h>
# include "bitmap.h"
typedef struct DataRun
{
short int drX0;
short int drXp;
short int drRepeatCount;
} DataRun;
typedef struct SegmentEdge
{
struct SegmentNode * seFrom;
struct SegmentNode * seTo;
DataRun * seRuns;
short int seRunCount;
} SegmentEdge;
typedef struct SegmentNode
{
SegmentEdge ** snUpEdges;
SegmentEdge ** snDownEdges;
short int snUpEdgeCount;
short int snDownEdgeCount;
short int snY0;
} SegmentNode;
/************************************************************************/
/* */
/* A 'segment' as discovered during the segmentation process. */
/* */
/* NOTE that conceptually there is a similarity with the graph */
/* resulting from the skeleton of a component. In this */
/* implementation, the is no relationship however. */
/* */
/************************************************************************/
typedef struct BitmapSegment
{
short int bsX0;
short int bsX1;
short int bsY0;
short int bsY1;
short int bsNodeCount;
short int bsEdgeCount;
SegmentNode ** bsNodes;
SegmentEdge ** bsEdges;
} BitmapSegment;
/************************************************************************/
/* */
/* Routine declarations. */
/* */
/************************************************************************/
extern int bcComponents( BitmapSegment *** pSegments,
int * pCount,
const unsigned char * buffer,
const BitmapDescription * bd );
extern void bmFreeSegment( BitmapSegment * bs );
extern int bmcDrawComponent( const BitmapSegment * bs,
unsigned char * buffer,
int col0,
int row0,
int bytesPerRow,
int colorEncoding );
extern void bmcStatistics( const BitmapSegment * bs,
int * pN,
float * pSx,
float * pSy,
float * pSxx,
float * pSyy,
float * pSxy );
# endif /* BM_SEGMENTS_H */
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