CBlob Class Reference

Blob class. More...

#include <Blob.h>

List of all members.

Public Member Functions
void	AddInternalContour (const CBlobContour &newContour)
	Adds a new internal contour to the blob.
double	Area ()
	Compute blob's area.
	CBlob ()
	CBlob (t_labelType id, CvPoint startPoint, CvSize originalImageSize)
	CBlob (const CBlob &src)
	Copy constructor.
	CBlob (const CBlob *src)
int	Exterior (IplImage *mask, bool xBorder=true, bool yBorder=true)
	> 0 for extern blobs, 0 if not
double	ExternPerimeter (IplImage *mask, bool xBorder=true, bool yBorder=true)
	Compute extern perimeter.
void	FillBlob (IplImage *imatge, CvScalar color, int offsetX=0, int offsetY=0)
CvRect	GetBoundingBox ()
	Get bounding box.
t_PointList	GetConvexHull ()
CvBox2D	GetEllipse ()
	Get bounding ellipse.
CBlobContour *	GetExternalContour ()
	Retrieves contour in Freeman's chain code.
t_labelType	GetID ()
	Get label ID.
CvMemStorage *	GetStorage ()
	Retrieves blob storage.
bool	IsEmpty ()
void	JoinBlob (CBlob *blob)
	Join a blob to current one (add's contour.
double	MaxX ()
	Maximun X.
double	MaxY ()
	Maximun Y.
double	Mean (IplImage *image)
	Get mean grey color.
double	MinX ()
	Minimun X.
double	MinY ()
	Minimun Y.
double	Moment (int p, int q)
	Compute blob's moment (p,q up to MAX_CALCULATED_MOMENTS)
CBlob &	operator= (const CBlob &src)
double	Perimeter ()
	Compute blob's perimeter.
double	StdDev (IplImage *image)
	Get standard deviation grey color.
	~CBlob ()
Private Types
typedef std::list< CBlobContour >	t_contourList
Private Member Functions
void	ClearContours ()
	Deallocates all contours.
Private Attributes
double	m_area
	Area.
CvRect	m_boundingBox
	Bounding box.
CvBox2D	m_ellipse
	Bounding ellipse.
CBlobContour	m_externalContour
	External contour of the blob (crack codes)
double	m_externPerimeter
	Extern perimeter from blob.
t_labelType	m_id
	Label number.
t_contourList	m_internalContours
	Internal contours (crack codes)
double	m_meanGray
	Mean gray color.
CvSize	m_originalImageSize
	Sizes from image where blob is extracted.
double	m_perimeter
	Perimeter.
double	m_stdDevGray
	Standard deviation from gray color blob distribution.
CvMemStorage *	m_storage
	Contour storage memory.

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Detailed Description

Blob class.

Definition at line 37 of file Blob.h.

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Member Typedef Documentation

typedef std::list<CBlobContour> CBlob::t_contourList [private]

Definition at line 39 of file Blob.h.

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Constructor & Destructor Documentation

CBlob::CBlob

(

)

Definition at line 20 of file Blob.cpp.

CBlob::CBlob	(	t_labelType	id,
		CvPoint	startPoint,
		CvSize	originalImageSize
	)

Definition at line 29 of file Blob.cpp.

CBlob::~CBlob

(

)

Definition at line 108 of file Blob.cpp.

CBlob::CBlob

(

const CBlob &

src

)

Copy constructor.

Definition at line 41 of file Blob.cpp.

CBlob::CBlob

(

const CBlob *

src

)

Definition at line 47 of file Blob.cpp.

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Member Function Documentation

void CBlob::AddInternalContour

(

const CBlobContour &

newContour

)

Adds a new internal contour to the blob.

Definition at line 132 of file Blob.cpp.

double CBlob::Area

(

)

Compute blob's area.

• FUNCIÓ: Area
• FUNCIONALITAT: Get blob area, ie. external contour area minus internal contours area
• PARÀMETRES:
• RESULTAT:
• RESTRICCIONS:
• AUTOR: rborras
• DATA DE CREACIÓ: 2008/04/30
• MODIFICACIÓ: Data. Autor. Descripció.

Definition at line 157 of file Blob.cpp.

void CBlob::ClearContours

(

)

[private]

Deallocates all contours.

Definition at line 116 of file Blob.cpp.

int CBlob::Exterior	(	IplImage *	mask,
		bool	xBorder = true,
		bool	yBorder = true
	)

> 0 for extern blobs, 0 if not

• FUNCIÓ: Exterior
• FUNCIONALITAT: Return true for extern blobs
• PARÀMETRES:
  • xBorder: true to consider blobs touching horizontal borders as extern
  • yBorder: true to consider blobs touching vertical borders as extern
• RESULTAT:
• RESTRICCIONS:
• AUTOR: rborras
• DATA DE CREACIÓ: 2008/05/06
• MODIFICACIÓ: Data. Autor. Descripció.

Definition at line 219 of file Blob.cpp.

double CBlob::ExternPerimeter	(	IplImage *	maskImage,
		bool	xBorder = true,
		bool	yBorder = true
	)

Compute extern perimeter.

• FUNCIÓ: ExternPerimeter
• FUNCIONALITAT: Get extern perimeter (perimeter touching image borders)
• PARÀMETRES:
  • maskImage: if != NULL, counts maskImage black pixels as external pixels and contour points touching them are counted as external contour points.
  • xBorder: true to consider blobs touching horizontal borders as extern
  • yBorder: true to consider blobs touching vertical borders as extern
• RESULTAT:
• RESTRICCIONS:
• AUTOR: rborras
• DATA DE CREACIÓ: 2008/05/05
• MODIFICACIÓ: Data. Autor. Descripció.
• NOTA: If CBlobContour::GetContourPoints aproximates contours with a method different that NONE, this function will not give correct results

Definition at line 246 of file Blob.cpp.

void CBlob::FillBlob	(	IplImage *	imatge,
		CvScalar	color,
		int	offsetX = 0,
		int	offsetY = 0
	)

Pinta l'interior d'un blob d'un color determinat Paints the blob in an image

• FUNCTION: FillBlob
• FUNCTIONALITY:
  • Fills the blob with a specified colour
• PARAMETERS:
  • imatge: where to paint
  • color: colour to paint the blob
• RESULT:
  • modifies input image and returns the seed point used to fill the blob
• RESTRICTIONS:
• AUTHOR: Ricard Borràs
• CREATION DATE: 25-05-2005.
• MODIFICATION: Date. Author. Description.

Definition at line 649 of file Blob.cpp.

CvRect CBlob::GetBoundingBox

(

)

Get bounding box.

• FUNCIÓ: GetBoundingBox
• FUNCIONALITAT: Get bounding box (without rotation) of a blob
• PARÀMETRES:
• RESULTAT:
• RESTRICCIONS:
• AUTOR: rborras
• DATA DE CREACIÓ: 2008/05/06
• MODIFICACIÓ: Data. Autor. Descripció.

Definition at line 488 of file Blob.cpp.

t_PointList CBlob::GetConvexHull

(

)

Retorna el poligon convex del blob Calculates the convex hull of the blob

• FUNCTION: GetConvexHull
• FUNCTIONALITY: Calculates the convex hull polygon of the blob
• PARAMETERS:
  • dst: where to store the result
• RESULT:
  • true if no error ocurred
• RESTRICTIONS:
• AUTHOR: Ricard Borràs
• CREATION DATE: 25-05-2005.
• MODIFICATION: Date. Author. Description.

Definition at line 667 of file Blob.cpp.

CvBox2D CBlob::GetEllipse

(

)

Get bounding ellipse.

• FUNCIÓ: GetEllipse
• FUNCIONALITAT: Calculates bounding ellipse of external contour points
• PARÀMETRES:
• RESULTAT:
• RESTRICCIONS:
• AUTOR: rborras
• DATA DE CREACIÓ: 2008/05/06
• MODIFICACIÓ: Data. Autor. Descripció.
• NOTA: Calculation is made using second order moment aproximation

Definition at line 555 of file Blob.cpp.

CBlobContour* CBlob::GetExternalContour

(

)

[inline]

Retrieves contour in Freeman's chain code.

Definition at line 58 of file Blob.h.

t_labelType CBlob::GetID

(

)

[inline]

Get label ID.

Definition at line 70 of file Blob.h.

CvMemStorage* CBlob::GetStorage

(

)

[inline]

Retrieves blob storage.

Definition at line 64 of file Blob.h.

bool CBlob::IsEmpty

(

)

Indica si el blob està buit ( no té cap info associada ) Shows if the blob has associated information

Definition at line 139 of file Blob.cpp.

void CBlob::JoinBlob

(

CBlob *

blob

)

Join a blob to current one (add's contour.

• FUNCTION: JoinBlob
• FUNCTIONALITY: Add's external contour to current external contour
• PARAMETERS:
  • blob: blob from which extract the added external contour
• RESULT:
  • true if no error ocurred
• RESTRICTIONS: Only external contours are added
• AUTHOR: Ricard Borràs
• CREATION DATE: 25-05-2005.
• MODIFICATION: Date. Author. Description.

Definition at line 690 of file Blob.cpp.

double CBlob::MaxX

(

)

[inline]

Maximun X.

Definition at line 123 of file Blob.h.

double CBlob::MaxY

(

)

[inline]

Maximun Y.

Definition at line 128 of file Blob.h.

double CBlob::Mean

(

IplImage *

image

)

Get mean grey color.

• FUNCIÓ: Mean
• FUNCIONALITAT: Get blob mean color in input image
• PARÀMETRES:
  • image: image from gray color are extracted
• RESULTAT:
• RESTRICCIONS:
• AUTOR: rborras
• DATA DE CREACIÓ: 2008/05/06
• MODIFICACIÓ: Data. Autor. Descripció.

Definition at line 409 of file Blob.cpp.

double CBlob::MinX

(

)

[inline]

Minimun X.

Definition at line 113 of file Blob.h.

double CBlob::MinY

(

)

[inline]

Minimun Y.

Definition at line 118 of file Blob.h.

double CBlob::Moment	(	int	p,
		int	q
	)

Compute blob's moment (p,q up to MAX_CALCULATED_MOMENTS)

Definition at line 379 of file Blob.cpp.

CBlob & CBlob::operator=

(

const CBlob &

src

)

Operador d'assignació Assigment operator

Definition at line 56 of file Blob.cpp.

double CBlob::Perimeter

(

)

Compute blob's perimeter.

• FUNCIÓ: Perimeter
• FUNCIONALITAT: Get blob perimeter, ie. sum of the lenght of all the contours
• PARÀMETRES:
• RESULTAT:
• RESTRICCIONS:
• AUTOR: rborras
• DATA DE CREACIÓ: 2008/04/30
• MODIFICACIÓ: Data. Autor. Descripció.

Definition at line 187 of file Blob.cpp.

double CBlob::StdDev

(

IplImage *

image

)

Get standard deviation grey color.

Definition at line 462 of file Blob.cpp.

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Member Data Documentation

double CBlob::m_area [private]

Area.

Definition at line 155 of file Blob.h.

CvRect CBlob::m_boundingBox [private]

Bounding box.

Definition at line 165 of file Blob.h.

CvBox2D CBlob::m_ellipse [private]

Bounding ellipse.

Definition at line 167 of file Blob.h.

CBlobContour CBlob::m_externalContour [private]

External contour of the blob (crack codes)

Definition at line 144 of file Blob.h.

double CBlob::m_externPerimeter [private]

Extern perimeter from blob.

Definition at line 159 of file Blob.h.

t_labelType CBlob::m_id [private]

Label number.

Definition at line 153 of file Blob.h.

t_contourList CBlob::m_internalContours [private]

Internal contours (crack codes)

Definition at line 146 of file Blob.h.

double CBlob::m_meanGray [private]

Mean gray color.

Definition at line 161 of file Blob.h.

CvSize CBlob::m_originalImageSize [private]

Sizes from image where blob is extracted.

Definition at line 169 of file Blob.h.

double CBlob::m_perimeter [private]

Perimeter.

Definition at line 157 of file Blob.h.

double CBlob::m_stdDevGray [private]

Standard deviation from gray color blob distribution.

Definition at line 163 of file Blob.h.

CvMemStorage* CBlob::m_storage [private]

Contour storage memory.

Definition at line 142 of file Blob.h.

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The documentation for this class was generated from the following files:

• Blob.h
• Blob.cpp