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HxSF Class Reference

Class definition of the structuring function used for Mathematical Morphology operations. More...

#include <HxSF.h>

List of all members.

Public Methods
HxImageRep	getKernel () const
HxImageRep	getHorizontalKernel () const
HxImageRep	getVerticalKernel () const
bool	isSeparable () const
bool	isSymetric () const
int	getConnectivity () const
HxSF	dilateSF (int n)
	perform a "n-1" dilation or Minkowski addition of the SF. More...
HxSF	erodeSF (int n)
HxSF	rotateSF (int theta, bool sense)
	perform rotation of the SF; this is used in Thickening and Thinning the allowed values for theta are 45, 90, 180 sense is TRUE for COUNTERCLOCKWISE and FALSE for CLOCKWISE. More...
Constructors
	HxSF ()
	Null Structuring Function. More...
	HxSF (const HxSF &)
	Copy Constructor. More...
	HxSF (HxImageRep im, bool sym, bool decomp, int conn)
	HxSF (HxImageRep imH, HxImageRep imV, bool sym, bool decomp, int conn)
	HxSF (HxImageRep im, HxImageRep imH, HxImageRep imV, bool sym, bool decomp, int conn)
Destructor
	~HxSF ()
Operators
HxSF &	operator= (const HxSF &)
	Assignment operator. More...
Friends
class	HxSFFactory

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Detailed Description

Class definition of the structuring function used for Mathematical Morphology operations.

Author:

Leon Todoran (todoran@science.uva.nl)

Version:

0.1

Date:

10.01.2002

the structuring element should have the same signature as the argument image

Remarks:

is it allowed for the se to have:

• even size?
• different x and y sizes?
• different signature than the image?

Todo:

still have to implement: -roatation of se

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Constructor & Destructor Documentation

HxSF::HxSF (    )

Null Structuring Function. { symetric = false; separable = false; connectivity = 8; }

HxSF::HxSF (  const HxSF &    a )

Copy Constructor. { se = a.getKernel(); seH = a.getHorizontalKernel(); seV = a.getVerticalKernel(); symetric = a.isSymetric(); separable = a.isSeparable(); connectivity = a.getConnectivity(); }

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Member Function Documentation

HxSF & HxSF::operator= (  const HxSF &    a )

Assignment operator. { se = a.getKernel(); seH = a.getHorizontalKernel(); seV = a.getVerticalKernel(); symetric = a.isSymetric(); separable = a.isSeparable(); connectivity = a.getConnectivity(); return *this; }

HxSF HxSF::dilateSF (  int    n )

perform a "n-1" dilation or Minkowski addition of the SF. { if(n==0) return *this; size = se.sizes(); int increaseFactorX = size.x()/2; int increaseFactorY = size.y()/2; int newx = size.x()+2*n*increaseFactorX; int newy = size.y()+2*n*increaseFactorY; HxSizes sz(newx,newy,1); HxPoint p(newx/2-size.x()/2,newy/2-(size.y())/2,0); HxImageRep im = HxExtendVal(se,sz,0,p); for(int i=0; i< n; i++) im = HxDilation(im, *this); HxSF sf(im, this->isSymetric(), false, this->getConnectivity() ); return sf; }

HxSF HxSF::rotateSF (  int    theta, bool    sense )

perform rotation of the SF; this is used in Thickening and Thinning the allowed values for theta are 45, 90, 180 sense is TRUE for COUNTERCLOCKWISE and FALSE for CLOCKWISE.

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

• HxSF.h
• HxSF.c

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