#include <itkShrinkImageFilter.h>

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

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

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef InputImageType::ConstPointer	InputImageConstPointer
typedef InputImageType::Pointer	InputImagePointer
typedef TInputImage	InputImageType
typedef TInputImage::IndexType	InputIndexType
typedef OutputImageType::Pointer	OutputImagePointer
typedef TOutputImage::RegionType	OutputImageRegionType
typedef TOutputImage	OutputImageType
typedef TOutputImage::IndexType	OutputIndexType
typedef TOutputImage::OffsetType	OutputOffsetType
typedef SmartPointer< Self >	Pointer
typedef ShrinkImageFilter	Self
typedef FixedArray< unsigned int, ImageDimension >	ShrinkFactorsType
typedef ImageToImageFilter < TInputImage, TOutputImage >	Superclass
Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual void	GenerateInputRequestedRegion ()
virtual void	GenerateOutputInformation ()
virtual const char *	GetNameOfClass () const
virtual const ShrinkFactorsType &	GetShrinkFactors ()
	typedef (Concept::Convertible< typename TInputImage::PixelType, typename TOutputImage::PixelType >) InputConvertibleToOutputCheck
	typedef (Concept::SameDimension< ImageDimension, OutputImageDimension >) SameDimensionCheck

virtual void	SetShrinkFactors (ShrinkFactorsType _arg)
void	SetShrinkFactors (unsigned int factor)
void	SetShrinkFactor (unsigned int i, unsigned int factor)
Static Public Member Functions
static Pointer	New ()
Static Public Attributes

static const unsigned int	ImageDimension = TInputImage::ImageDimension
static const unsigned int	OutputImageDimension = TOutputImage::ImageDimension
Protected Member Functions
void	ThreadedGenerateData (const OutputImageRegionType &outputRegionForThread, ThreadIdType threadId)

	ShrinkImageFilter ()
	~ShrinkImageFilter ()
void	PrintSelf (std::ostream &os, Indent indent) const
Private Member Functions
void	operator= (const Self &)
	ShrinkImageFilter (const Self &)
Private Attributes
ShrinkFactorsType	m_ShrinkFactors

Detailed Description

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

Reduce the size of an image by an integer factor in each dimension.

ShrinkImageFilter reduces the size of an image by an integer factor in each dimension. The algorithm implemented is a simple subsample. The output image size in each dimension is given by:

outputSize[j] = max( vcl_floor(inputSize[j]/shrinkFactor[j]), 1 );

NOTE: The physical centers of the input and output will be the same. Because of this, the Origin of the output may not be the same as the Origin of the input. Since this filter produces an image which is a different resolution, origin and with different pixel spacing than its input image, it needs to override several of the methods defined in ProcessObject in order to properly manage the pipeline execution model. In particular, this filter overrides ProcessObject::GenerateInputRequestedRegion() and ProcessObject::GenerateOutputInformation().

This filter is implemented as a multithreaded filter. It provides a ThreadedGenerateData() method for its implementation.

Wiki Examples:

All Examples

Shrink an image

Definition at line 67 of file itkShrinkImageFilter.h.