cvcontours.cpp File Reference

#include "_cv.h"

Classes
struct	_CvContourInfo
struct	_CvContourScanner
struct	CvLinkedRunPoint

Macros
#define	CV_INIT_3X3_DELTAS(deltas, step, nch)
#define	_CV_FIND_CONTOURS_FLAGS_EXTERNAL_ONLY   1
#define	_CV_FIND_CONTOURS_FLAGS_HIERARCHIC   2
#define	ICV_SINGLE   0
#define	ICV_CONNECTING_ABOVE   1
#define	ICV_CONNECTING_BELOW   -1
#define	ICV_IS_COMPONENT_POINT(val)   ((val) != 0)
#define	CV_GET_WRITTEN_ELEM(writer)   ((writer).ptr - (writer).seq->elem_size)

Typedefs
typedef struct _CvContourInfo	_CvContourInfo
typedef struct _CvContourScanner	_CvContourScanner
typedef struct CvLinkedRunPoint	CvLinkedRunPoint

Functions
CV_IMPL void	cvStartReadChainPoints (CvChain *chain, CvChainPtReader *reader)
CV_IMPL CvPoint	cvReadChainPoint (CvChainPtReader *reader)
CV_IMPL CvContourScanner	cvStartFindContours (void *_img, CvMemStorage *storage, int header_size, int mode, int method, CvPoint offset)
CV_IMPL void	cvSubstituteContour (CvContourScanner scanner, CvSeq *new_contour)
CvSeq *	cvFindNextContour (CvContourScanner scanner)
CV_IMPL CvSeq *	cvEndFindContours (CvContourScanner *_scanner)
CV_IMPL int	cvFindContours (void *img, CvMemStorage *storage, CvSeq **firstContour, int cntHeaderSize, int mode, int method, CvPoint offset)

Macro Definition Documentation

#define _CV_FIND_CONTOURS_FLAGS_EXTERNAL_ONLY   1

#define _CV_FIND_CONTOURS_FLAGS_HIERARCHIC   2

#define CV_GET_WRITTEN_ELEM

(

writer

)

((writer).ptr - (writer).seq->elem_size)

#define CV_INIT_3X3_DELTAS	(		deltas,
			step,
			nch
	)

Value:

((deltas)[0] =  (nch),  (deltas)[1] = -(step) + (nch),  \
     (deltas)[2] = -(step), (deltas)[3] = -(step) - (nch),  \
     (deltas)[4] = -(nch),  (deltas)[5] =  (step) - (nch),  \
     (deltas)[6] =  (step), (deltas)[7] =  (step) + (nch))

#define ICV_CONNECTING_ABOVE   1

#define ICV_CONNECTING_BELOW   -1

#define ICV_IS_COMPONENT_POINT

(

val

)

((val) != 0)

#define ICV_SINGLE   0

Typedef Documentation

typedef struct _CvContourInfo _CvContourInfo

typedef struct _CvContourScanner _CvContourScanner

typedef struct CvLinkedRunPoint CvLinkedRunPoint

Function Documentation

CV_IMPL CvSeq* cvEndFindContours

(

CvContourScanner *

_scanner

)

CV_IMPL int cvFindContours	(	void *	img,
		CvMemStorage *	storage,
		CvSeq **	firstContour,
		int	cntHeaderSize,
		int	mode,
		int	method,
		CvPoint	offset
	)

CvSeq* cvFindNextContour

(

CvContourScanner

scanner

)

CV_IMPL CvPoint cvReadChainPoint

(

CvChainPtReader *

reader

)

CV_IMPL CvContourScanner cvStartFindContours	(	void *	_img,
		CvMemStorage *	storage,
		int	header_size,
		int	mode,
		int	method,
		CvPoint	offset
	)

CV_IMPL void cvStartReadChainPoints	(	CvChain *	chain,
		CvChainPtReader *	reader
	)

CV_IMPL void cvSubstituteContour	(	CvContourScanner	scanner,
		CvSeq *	new_contour
	)