ITK
4.3.0
Insight Segmentation and Registration Toolkit
|
#include <itkShrinkImageFilter.h>
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.
Definition at line 67 of file itkShrinkImageFilter.h.
Static Public Member Functions | |
static Pointer | New () |
Static Public Attributes | |
static const unsigned int | ImageDimension = TInputImage::ImageDimension |
static const unsigned int | OutputImageDimension = TOutputImage::ImageDimension |
Static Public Attributes inherited from itk::ImageToImageFilter< TInputImage, TOutputImage > | |
static const unsigned int | InputImageDimension = TInputImage::ImageDimension |
static const unsigned int | OutputImageDimension = TOutputImage::ImageDimension |
Static Public Attributes inherited from itk::ImageSource< TOutputImage > | |
static const unsigned int | OutputImageDimension = TOutputImage::ImageDimension |
Private Member Functions | |
void | operator= (const Self &) |
ShrinkImageFilter (const Self &) | |
Private Attributes | |
ShrinkFactorsType | m_ShrinkFactors |
Additional Inherited Members | |
Protected Types inherited from itk::ImageToImageFilter< TInputImage, TOutputImage > | |
typedef ImageToImageFilterDetail::ImageRegionCopier < itkGetStaticConstMacro(OutputImageDimension), itkGetStaticConstMacro(InputImageDimension) > | InputToOutputRegionCopierType |
typedef ImageToImageFilterDetail::ImageRegionCopier < itkGetStaticConstMacro(InputImageDimension), itkGetStaticConstMacro(OutputImageDimension) > | OutputToInputRegionCopierType |
Static Protected Member Functions inherited from itk::ImageSource< TOutputImage > | |
static ITK_THREAD_RETURN_TYPE | ThreaderCallback (void *arg) |
Protected Attributes inherited from itk::ProcessObject | |
TimeStamp | m_OutputInformationMTime |
bool | m_Updating |
typedef SmartPointer< const Self > itk::ShrinkImageFilter< TInputImage, TOutputImage >::ConstPointer |
Definition at line 75 of file itkShrinkImageFilter.h.
typedef InputImageType::ConstPointer itk::ShrinkImageFilter< TInputImage, TOutputImage >::InputImageConstPointer |
Definition at line 88 of file itkShrinkImageFilter.h.
typedef InputImageType::Pointer itk::ShrinkImageFilter< TInputImage, TOutputImage >::InputImagePointer |
Definition at line 87 of file itkShrinkImageFilter.h.
typedef TInputImage itk::ShrinkImageFilter< TInputImage, TOutputImage >::InputImageType |
Definition at line 85 of file itkShrinkImageFilter.h.
typedef TInputImage::IndexType itk::ShrinkImageFilter< TInputImage, TOutputImage >::InputIndexType |
Definition at line 91 of file itkShrinkImageFilter.h.
typedef OutputImageType::Pointer itk::ShrinkImageFilter< TInputImage, TOutputImage >::OutputImagePointer |
Definition at line 86 of file itkShrinkImageFilter.h.
typedef TOutputImage::RegionType itk::ShrinkImageFilter< TInputImage, TOutputImage >::OutputImageRegionType |
Typedef to describe the output image region type.
Definition at line 95 of file itkShrinkImageFilter.h.
typedef TOutputImage itk::ShrinkImageFilter< TInputImage, TOutputImage >::OutputImageType |
Typedef to images
Definition at line 81 of file itkShrinkImageFilter.h.
typedef TOutputImage::IndexType itk::ShrinkImageFilter< TInputImage, TOutputImage >::OutputIndexType |
Definition at line 90 of file itkShrinkImageFilter.h.
typedef TOutputImage::OffsetType itk::ShrinkImageFilter< TInputImage, TOutputImage >::OutputOffsetType |
Definition at line 92 of file itkShrinkImageFilter.h.
typedef SmartPointer< Self > itk::ShrinkImageFilter< TInputImage, TOutputImage >::Pointer |
Definition at line 74 of file itkShrinkImageFilter.h.
typedef ShrinkImageFilter itk::ShrinkImageFilter< TInputImage, TOutputImage >::Self |
Standard class typedefs.
Definition at line 72 of file itkShrinkImageFilter.h.
typedef FixedArray< unsigned int, ImageDimension > itk::ShrinkImageFilter< TInputImage, TOutputImage >::ShrinkFactorsType |
Definition at line 104 of file itkShrinkImageFilter.h.
typedef ImageToImageFilter< TInputImage, TOutputImage > itk::ShrinkImageFilter< TInputImage, TOutputImage >::Superclass |
Definition at line 73 of file itkShrinkImageFilter.h.
|
protected |
End concept checking
|
inlineprotected |
Definition at line 147 of file itkShrinkImageFilter.h.
|
private |
|
virtual |
Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.
Reimplemented from itk::Object.
|
virtual |
ShrinkImageFilter needs a larger input requested region than the output requested region. As such, ShrinkImageFilter needs to provide an implementation for GenerateInputRequestedRegion() in order to inform the pipeline execution model.
Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.
|
virtual |
ShrinkImageFilter produces an image which is a different resolution and with a different pixel spacing than its input image. As such, ShrinkImageFilter needs to provide an implementation for GenerateOutputInformation() in order to inform the pipeline execution model. The original documentation of this method is below.
Reimplemented from itk::ProcessObject.
|
virtual |
Run-time type information (and related methods).
Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.
|
virtual |
Get the shrink factors.
|
static |
Method for creation through the object factory.
|
private |
|
protectedvirtual |
Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.
Reimplemented from itk::ImageToImageFilter< TInputImage, TOutputImage >.
|
inline |
Set the shrink factors. Values are clamped to a minimum value of 1. Default is 1 for all dimensions.
Definition at line 110 of file itkShrinkImageFilter.h.
|
virtual |
Set the shrink factors. Values are clamped to a minimum value of 1. Default is 1 for all dimensions.
void itk::ShrinkImageFilter< TInputImage, TOutputImage >::SetShrinkFactors | ( | unsigned int | factor | ) |
Set the shrink factors. Values are clamped to a minimum value of 1. Default is 1 for all dimensions.
|
protectedvirtual |
ShrinkImageFilter can be implemented as a multithreaded filter. Therefore, this implementation provides a ThreadedGenerateData() routine which is called for each processing thread. The output image data is allocated automatically by the superclass prior to calling ThreadedGenerateData(). ThreadedGenerateData can only write to the portion of the output image specified by the parameter "outputRegionForThread"
Reimplemented from itk::ImageSource< TOutputImage >.
itk::ShrinkImageFilter< TInputImage, TOutputImage >::typedef | ( | Concept::Convertible< typename TInputImage::PixelType, typename TOutputImage::PixelType > | ) |
Begin concept checking This class requires InputConvertibleToOutputCheck in the form of ( Concept::Convertible< typename TInputImage::PixelType, typename TOutputImage::PixelType > )
itk::ShrinkImageFilter< TInputImage, TOutputImage >::typedef | ( | Concept::SameDimension< ImageDimension, OutputImageDimension > | ) |
This class requires SameDimensionCheck in the form of ( Concept::SameDimension< ImageDimension, OutputImageDimension > )
|
static |
ImageDimension enumeration.
Definition at line 99 of file itkShrinkImageFilter.h.
|
private |
Definition at line 167 of file itkShrinkImageFilter.h.
|
static |
ImageDimension enumeration.
Definition at line 101 of file itkShrinkImageFilter.h.