itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType > Class Template Reference

#include <itkBSplineDownsampleImageFilter.h>

Detailed Description

template<typename TInputImage, typename TOutputImage, typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>
class itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >

Down-samples an image by a factor of 2 using B-Spline filter interpolation.

This class is the public interface for spline down-sampling as defined by the ResamplerType. Requires the use of a resampler type. If in doubt, the basic itkBSplineResampleImageFilterBase should work fine for most applications.

This class may also be used to create a smoother by combining it with the upSampler as in the following example: using ResamplerType = itk::BSplineResampleImageFilterBase<ImageType2D, ImageType2D>; using DownsamplerType2D = itk::BSplineDownsampleImageFilter<ImageType2D,ImageType2D,ResamplerType>; using UpsamplerType2D = itk::BSplineUpsampleImageFilter<ImageType2D,ImageType2D,ResamplerType>;

auto downSampler = DownsamplerType2D::New(); UpsamplerType2D::Pointer upSampler = UpsamplerType2D::New(); int splineOrder = 3; downSampler->SetSplineOrder(splineOrder); upSampler->SetSplineOrder(splineOrder);

downSampler->SetInput(image); downSampler->Update();

upSampler->SetInput( downSampler->GetOutput() ); // output of downSampler is input to upSampler upSampler->Update();

ImageTypePtr2D outImage2 = upSampler->GetOutput(); // outImage2 is the smoothed imaged

Limitations: This class requires specification of a resampler type which may be one of: itkBSplineResampleImageFilterBase, itkBSplineL2ResampleImageFilterBase itkBSplineSplineCenteredResampleImageFilterBase, itkBSplineCenteredL2ResampleImageFilterBase The limitations of these resampler types will apply to this filter. Down-samples only by a factor of 2.

See also

itkBSplineDownsampleImageFilter

itkBSplineL2ResampleImageFilter

itkBSplineResampleImageFilterBase

itkBSplineCenteredResampleImageFilterBase

itkBSplineCenteredL2ResampleImageFilterBase

Definition at line 92 of file itkBSplineDownsampleImageFilter.h.

Inheritance diagram for itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >:

Collaboration diagram for itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >:

Public Types
using	ConstPointer = SmartPointer< const Self >
using	Pointer = SmartPointer< Self >
using	Self = BSplineDownsampleImageFilter
using	Superclass = ResamplerType

Public Member Functions
void	GenerateInputRequestedRegion () override
void	GenerateOutputInformation () override
const char *	GetNameOfClass () const override

Static Public Member Functions
static Pointer	New ()

Protected Member Functions
	BSplineDownsampleImageFilter ()=default
void	EnlargeOutputRequestedRegion (DataObject *output) override
void	GenerateData () override
	~BSplineDownsampleImageFilter () override=default

Member Typedef Documentation

ConstPointer

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

using itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::ConstPointer = SmartPointer<const Self>

Definition at line 101 of file itkBSplineDownsampleImageFilter.h.

Pointer

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

using itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::Pointer = SmartPointer<Self>

Definition at line 100 of file itkBSplineDownsampleImageFilter.h.

Self

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

using itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::Self = BSplineDownsampleImageFilter

Standard class type aliases.

Definition at line 98 of file itkBSplineDownsampleImageFilter.h.

Superclass

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

using itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::Superclass = ResamplerType

Definition at line 99 of file itkBSplineDownsampleImageFilter.h.

Constructor & Destructor Documentation

BSplineDownsampleImageFilter()

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::BSplineDownsampleImageFilter ( )

protecteddefault

~BSplineDownsampleImageFilter()

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::~BSplineDownsampleImageFilter ( )

overrideprotecteddefault

Member Function Documentation

EnlargeOutputRequestedRegion()

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

void itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::EnlargeOutputRequestedRegion ( DataObject *  output )

overrideprotected

GenerateData()

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

void itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::GenerateData ( )

overrideprotected

GenerateInputRequestedRegion()

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

void itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::GenerateInputRequestedRegion ( )

override

This filter requires all of the input image

GenerateOutputInformation()

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

void itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::GenerateOutputInformation ( )

override

Creates an image half the size of the input image with spacing twice the input image.

GetNameOfClass()

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

const char* itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::GetNameOfClass ( ) const

override

See also

LightObject::GetNameOfClass()

New()

template<typename TInputImage , typename TOutputImage , typename ResamplerType = BSplineResampleImageFilterBase<TInputImage, TOutputImage>>

static Pointer itk::BSplineDownsampleImageFilter< TInputImage, TOutputImage, ResamplerType >::New ( )

static

New macro for creation of through a Smart Pointer

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

• itkBSplineDownsampleImageFilter.h