mds::img::CZeroCrossDetector< I > Class Template Reference

Zero crossings of the LoG filter. More...

#include <mdsZeroCrossings.h>

Inheritance diagram for mds::img::CZeroCrossDetector< I >:

List of all members.

Public Types
enum	{ TEMPLATE_PARAMETER_IS_NOT_IMAGE = I::CLASS_IMAGE }
	Check that I is an image. More...
typedef CImageEdgeDetector< I >	base
	Image edge detector base.
typedef base::tImage	tImage
	Image type.
typedef base::tPixel	tPixel
	Image pixel type.
Public Member Functions
	CZeroCrossDetector (double dSigma, double dThreshold)
	Default constructor.
double	getSigma () const
	Returns LoG filter standard deviation.
double	getThreshold ()
	Return threshold for the gradient magnitude.
bool	operator() (const tImage &SrcImage, tImage &DstImage)
	Edge detection in a given image.
void	setSigma (double dSigma)
	Sets the LoG filter standard deviation.
void	setThreshold (double dThreshold)
	Returns gradient magnitude threshold.
	~CZeroCrossDetector ()
	Destructor.
Protected Member Functions
double	computeGradient (const tImage &Image, tSize x, tSize y)
	Computes the gradient magnitude.
bool	isEdge (const tImage &Image, tSize x, tSize y)
	Checks if the pixel is on edge.
Protected Attributes
double	m_dThreshold
	Magnitude threshold.
CLoGFilter< tImage, CShiftZero2Gray >	m_Filter
	LoG filter.

---

Detailed Description

template<class I>
class mds::img::CZeroCrossDetector< I >

Zero crossings of the LoG filter.

• Parameter I is a used image type.

---

Member Typedef Documentation

template<class I >

typedef CImageEdgeDetector<I> mds::img::CZeroCrossDetector< I >::base

Image edge detector base.

template<class I >

typedef base::tImage mds::img::CZeroCrossDetector< I >::tImage

Image type.

Reimplemented from mds::img::CImageEdgeDetector< I >.

template<class I >

typedef base::tPixel mds::img::CZeroCrossDetector< I >::tPixel

Image pixel type.

Reimplemented from mds::img::CImageEdgeDetector< I >.

---

Member Enumeration Documentation

template<class I >

anonymous enum [inherited]

Check that I is an image.

You will see name of this enum somewhere in compiler error message if the type I is not image.

Enumerator:

TEMPLATE_PARAMETER_IS_NOT_IMAGE

---

Constructor & Destructor Documentation

template<class I >

mds::img::CZeroCrossDetector< I >::CZeroCrossDetector	(	double	dSigma,
		double	dThreshold
	)

Default constructor.

• Standard deviation ("sigma" parameter) of the LoG filter.
• Threshold for the gradient magnitude.

template<class I >

mds::img::CZeroCrossDetector< I >::~CZeroCrossDetector

(

)

Destructor.

---

Member Function Documentation

template<class I >

double CZeroCrossDetector::computeGradient	(	const tImage &	Image,
		tSize	x,
		tSize	y
	)		[protected]

Computes the gradient magnitude.

template<class I >

double mds::img::CZeroCrossDetector< I >::getSigma

(

)

const

Returns LoG filter standard deviation.

template<class I >

double mds::img::CZeroCrossDetector< I >::getThreshold

(

)

Return threshold for the gradient magnitude.

template<class I >

bool CZeroCrossDetector::isEdge	(	const tImage &	Image,
		tSize	x,
		tSize	y
	)		[protected]

Checks if the pixel is on edge.

template<class I >

bool CZeroCrossDetector::operator()	(	const tImage &	SrcImage,
		tImage &	DstImage
	)		[virtual]

Edge detection in a given image.

• Returns false on failure

Implements mds::img::CImageEdgeDetector< I >.

template<class I >

void mds::img::CZeroCrossDetector< I >::setSigma

(

double

dSigma

)

Sets the LoG filter standard deviation.

template<class I >

void CZeroCrossDetector::setThreshold

(

double

dThreshold

)

Returns gradient magnitude threshold.

---

Member Data Documentation

template<class I >

double mds::img::CZeroCrossDetector< I >::m_dThreshold [protected]

Magnitude threshold.

template<class I >

CLoGFilter<tImage, CShiftZero2Gray> mds::img::CZeroCrossDetector< I >::m_Filter [protected]

LoG filter.

---

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

• mdsZeroCrossings.h
• mdsZeroCrossings.hxx