Suppress local minima whose depth below the baseline is less than h. More...

#include <itkHMinimaImageFilter.h>

Inheritance diagram for itk::HMinimaImageFilter< TInputImage, TOutputImage >:

Collaboration diagram for itk::HMinimaImageFilter< TInputImage, TOutputImage >:

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef InputImageType::ConstPointer	InputImageConstPointer
typedef InputImageType::PixelType	InputImagePixelType
typedef InputImageType::Pointer	InputImagePointer
typedef InputImageType::RegionType	InputImageRegionType
typedef TInputImage	InputImageType
typedef OutputImageType::ConstPointer	OutputImageConstPointer
typedef OutputImageType::PixelType	OutputImagePixelType
typedef OutputImageType::Pointer	OutputImagePointer
typedef OutputImageType::RegionType	OutputImageRegionType
typedef TOutputImage	OutputImageType
typedef SmartPointer< Self >	Pointer
typedef HMinimaImageFilter	Self
typedef ImageToImageFilter < TInputImage, TOutputImage >	Superclass
Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual const char *	GetNameOfClass () const
	typedef (Concept::Convertible< int, InputImagePixelType >) IntConvertibleToInputCheck
	typedef (Concept::EqualityComparable< InputImagePixelType >) InputEqualityComparableCheck
	typedef (Concept::OStreamWritable< InputImagePixelType >) InputOStreamWritableCheck

virtual void	SetHeight (InputImagePixelType _arg)
virtual InputImagePixelType	GetHeight () const

virtual void	SetFullyConnected (bool _arg)
virtual const bool &	GetFullyConnected ()
virtual void	FullyConnectedOn ()
virtual void	FullyConnectedOff ()
Static Public Member Functions
static Pointer	New ()
Static Public Attributes

static const unsigned int	InputImageDimension = TInputImage::ImageDimension
static const unsigned int	OutputImageDimension = TOutputImage::ImageDimension
Protected Member Functions
void	EnlargeOutputRequestedRegion (DataObject *)
void	GenerateData ()
void	GenerateInputRequestedRegion ()

	HMinimaImageFilter ()
	~HMinimaImageFilter ()
void	PrintSelf (std::ostream &os, Indent indent) const
Private Member Functions
	HMinimaImageFilter (const Self &)
void	operator= (const Self &)
Private Attributes
bool	m_FullyConnected
InputImagePixelType	m_Height
unsigned long	m_NumberOfIterationsUsed

Detailed Description

template<class TInputImage, class TOutputImage>
class itk::HMinimaImageFilter< TInputImage, TOutputImage >

Suppress local minima whose depth below the baseline is less than h.

HMinimaImageFilter suppresses local minima that are less than h intensity units below the (local) background. This has the effect of smoothing over the "low" parts of the noise in the image without smoothing over large changes in intensity (region boundaries). See the HMaximaImageFilter to suppress the local maxima whose height is less than h intensity units above the (local) background.

If original image is subtracted from the output of HMinimaImageFilter, the signicant "valleys" in the image can be identified. This is what the HConcaveImageFilter provides.

This filter uses the GrayscaleGeodesicErodeImageFilter. It provides its own input as the "mask" input to the geodesic dilation. The "marker" image for the geodesic dilation is the input image plus the height parameter h.

Geodesic morphology and the H-Minima algorithm is described in Chapter 6 of Pierre Soille's book "Morphological Image Analysis: Principles and Applications", Second Edition, Springer, 2003.

See also:: GrayscaleGeodesicDilateImageFilter, HMinimaImageFilter, HConvexImageFilter; MorphologyImageFilter, GrayscaleDilateImageFilter, GrayscaleFunctionDilateImageFilter, BinaryDilateImageFilter

Definition at line 55 of file itkHMinimaImageFilter.h.