itk::ImageToImageFilter< TInputImage, TOutputImage > Class Template Reference
[Image Filters]

Base class for filters that take an image as input and produce an image as output. More...

#include <itkImageToImageFilter.h>

Inherits itk::ImageSource< TOutputImage >.

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

[legend]

List of all members.

Public Types

typedef ImageToImageFilter Self

typedef ImageSource< TOutputImage > Superclass

typedef SmartPointer< Self > Pointer

typedef SmartPointer< const Self > ConstPointer

typedef
Superclass::OutputImageRegionType OutputImageRegionType

typedef
Superclass::OutputImagePixelType OutputImagePixelType

typedef TInputImage InputImageType

typedef InputImageType::Pointer InputImagePointer

typedef
InputImageType::ConstPointer InputImageConstPointer

typedef InputImageType::RegionType InputImageRegionType

typedef InputImageType::PixelType InputImagePixelType

typedef DataObject::Pointer DataObjectPointer

typedef TOutputImage OutputImageType

typedef OutputImageType::Pointer OutputImagePointer

typedef std::vector
< DataObjectPointer > DataObjectPointerArray

typedef
DataObjectPointerArray::size_type DataObjectPointerArraySizeType

Public Member Functions

virtual const char * GetNameOfClass () const

virtual void SetInput (const InputImageType *image)

virtual void SetInput (unsigned int, const TInputImage *image)

const InputImageType * GetInput (void)

const InputImageType * GetInput (unsigned int idx)

virtual void PushBackInput (const InputImageType *image)

virtual void PopBackInput ()

virtual void PushFrontInput (const InputImageType *image)

virtual void PopFrontInput ()

OutputImageType * GetOutput (void)

OutputImageType * GetOutput (unsigned int idx)

virtual void GraftOutput (DataObject *output)

virtual void GraftNthOutput (unsigned int idx, DataObject *output)

virtual DataObjectPointer MakeOutput (unsigned int idx)

DataObjectPointerArray & GetInputs ()

DataObjectPointerArraySizeType GetNumberOfInputs () const

virtual
DataObjectPointerArraySizeType GetNumberOfValidRequiredInputs () const

DataObjectPointerArray & GetOutputs ()

DataObjectPointerArraySizeType GetNumberOfOutputs () const

virtual void SetAbortGenerateData (bool _arg)

virtual const bool & GetAbortGenerateData ()

virtual void AbortGenerateDataOn ()

virtual void AbortGenerateDataOff ()

virtual void SetProgress (float _arg)

virtual const float & GetProgress ()

void UpdateProgress (float amount)

virtual void Update ()

virtual void UpdateLargestPossibleRegion ()

virtual void UpdateOutputInformation ()

virtual void PropagateRequestedRegion (DataObject *output)

virtual void UpdateOutputData (DataObject *output)

virtual void EnlargeOutputRequestedRegion (DataObject *)

virtual void ResetPipeline ()

virtual void SetReleaseDataFlag (bool flag)

virtual bool GetReleaseDataFlag () const

void ReleaseDataFlagOn ()

void ReleaseDataFlagOff ()

virtual void SetReleaseDataBeforeUpdateFlag (bool _arg)

virtual const bool & GetReleaseDataBeforeUpdateFlag ()

virtual void ReleaseDataBeforeUpdateFlagOn ()

virtual void ReleaseDataBeforeUpdateFlagOff ()

virtual void SetNumberOfThreads (int _arg)

virtual const int & GetNumberOfThreads ()

MultiThreader * GetMultiThreader ()

virtual void PrepareOutputs ()

virtual LightObject::Pointer CreateAnother () const

virtual void DebugOn () const

virtual void DebugOff () const

bool GetDebug () const

void SetDebug (bool debugFlag) const

virtual unsigned long GetMTime () const

virtual void Modified () const

virtual void Register () const

virtual void UnRegister () const

virtual void SetReferenceCount (int)

unsigned long AddObserver (const EventObject &event, Command *)

unsigned long AddObserver (const EventObject &event, Command *) const

Command * GetCommand (unsigned long tag)

void InvokeEvent (const EventObject &)

void InvokeEvent (const EventObject &) const

void RemoveObserver (unsigned long tag)

void RemoveAllObservers ()

bool HasObserver (const EventObject &event) const

MetaDataDictionary & GetMetaDataDictionary (void)

const MetaDataDictionary & GetMetaDataDictionary (void) const

void SetMetaDataDictionary (const MetaDataDictionary &rhs)

virtual void Delete ()

void Print (std::ostream &os, Indent indent=0) const

virtual int GetReferenceCount () const

Static Public Member Functions

static Pointer New ()

static void SetGlobalWarningDisplay (bool flag)

static bool GetGlobalWarningDisplay ()

static void GlobalWarningDisplayOn ()

static void GlobalWarningDisplayOff ()

static void BreakOnError ()

Static Public Attributes

static const unsigned int InputImageDimension = TInputImage::ImageDimension

static const unsigned int OutputImageDimension = TOutputImage::ImageDimension

Protected Types

typedef
ImageToImageFilterDetail::ImageRegionCopier
< itkGetStaticConstMacro(OutputImageDimension),
itkGetStaticConstMacro(InputImageDimension)> InputToOutputRegionCopierType

typedef
ImageToImageFilterDetail::ImageRegionCopier
< itkGetStaticConstMacro(InputImageDimension),
itkGetStaticConstMacro(OutputImageDimension)> OutputToInputRegionCopierType

typedef int InternalReferenceCountType

Protected Member Functions

virtual void PrintSelf (std::ostream &os, Indent indent) const

virtual void GenerateInputRequestedRegion ()

virtual void CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion)

virtual void CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion)

void PushBackInput (const DataObject *input)

void PushFrontInput (const DataObject *input)

const DataObject * GetOutput (unsigned int idx) const

virtual void GenerateData ()

virtual void ThreadedGenerateData (const OutputImageRegionType &outputRegionForThread, int threadId) ITK_NO_RETURN

virtual void AllocateOutputs ()

virtual void BeforeThreadedGenerateData ()

virtual void AfterThreadedGenerateData ()

virtual int SplitRequestedRegion (int i, int num, OutputImageRegionType &splitRegion)

virtual void SetNthInput (unsigned int num, DataObject *input)

virtual void AddInput (DataObject *input)

virtual void RemoveInput (DataObject *input)

virtual void SetNumberOfRequiredInputs (unsigned int _arg)

virtual const unsigned int & GetNumberOfRequiredInputs ()

void SetNumberOfInputs (unsigned int num)

const DataObject * GetInput (unsigned int idx) const

virtual void SetNthOutput (unsigned int num, DataObject *output)

virtual void AddOutput (DataObject *output)

virtual void RemoveOutput (DataObject *output)

virtual void SetNumberOfRequiredOutputs (unsigned int _arg)

virtual const unsigned int & GetNumberOfRequiredOutputs ()

void SetNumberOfOutputs (unsigned int num)

virtual void GenerateOutputRequestedRegion (DataObject *output)

virtual void GenerateOutputInformation ()

virtual void PropagateResetPipeline ()

virtual void ReleaseInputs ()

virtual void CacheInputReleaseDataFlags ()

virtual void RestoreInputReleaseDataFlags ()

bool PrintObservers (std::ostream &os, Indent indent) const

virtual void PrintHeader (std::ostream &os, Indent indent) const

virtual void PrintTrailer (std::ostream &os, Indent indent) const

Static Protected Member Functions

static ITK_THREAD_RETURN_TYPE ThreaderCallback (void *arg)

Protected Attributes

bool m_Updating

TimeStamp m_OutputInformationMTime

InternalReferenceCountType m_ReferenceCount

SimpleFastMutexLock m_ReferenceCountLock

Private Member Functions

ImageToImageFilter (const Self &)

void operator= (const Self &)

Detailed Description

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

Base class for filters that take an image as input and produce an image as output.

ImageToImageFilter is the base class for all process objects that output image data and require image data as input. Specifically, this class defines the SetInput() method for defining the input to a filter.

This class provides the infrastructure for supporting multithreaded processing of images. If a filter provides an implementation of GenerateData(), the image processing will run in a single thread and the implementation is responsible for allocating its output data. If a filter provides an implementation of ThreadedGenerateData() instead, the image will be divided into a number of pieces, a number of threads will be spawned, and ThreadedGenerateData() will be called in each thread. Here, the output memory will be allocated by this superclass prior to calling ThreadedGenerateData().

ImageToImageFilter provides an implementation of GenerateInputRequestedRegion(). The base assumption to this point in the hierarchy is that a process object would ask for the largest possible region on input in order to produce any output. Imaging filters, however, can usually answer this question more precisely. The default implementation of GenerateInputRequestedRegion() in this class is to request an input that matches the size of the requested output. If a filter requires more input (say a filter that uses neighborhood information) or less input (for instance a magnify filter), then these filters will have to provide another implmentation of this method. By convention, such implementations should call the Superclass' method first.

Definition at line 64 of file itkImageToImageFilter.h.

Member Typedef Documentation

template<class TInputImage, class TOutputImage>

typedef ImageToImageFilter itk::ImageToImageFilter< TInputImage, TOutputImage >::Self

Standard class typedefs.

Reimplemented from itk::ImageSource< TOutputImage >.

Definition at line 68 of file itkImageToImageFilter.h.

template<class TInputImage, class TOutputImage>

typedef Superclass::OutputImageRegionType itk::ImageToImageFilter< TInputImage, TOutputImage >::OutputImageRegionType

Superclass typedefs.

Reimplemented from itk::ImageSource< TOutputImage >.

Definition at line 75 of file itkImageToImageFilter.h.

template<class TInputImage, class TOutputImage>

typedef TInputImage itk::ImageToImageFilter< TInputImage, TOutputImage >::InputImageType

Some convenient typedefs.

Definition at line 82 of file itkImageToImageFilter.h.

template<class TInputImage, class TOutputImage>

typedef ImageToImageFilterDetail::ImageRegionCopier<itkGetStaticConstMacro(OutputImageDimension), itkGetStaticConstMacro(InputImageDimension)> itk::ImageToImageFilter< TInputImage, TOutputImage >::InputToOutputRegionCopierType [protected]

Typedef for the region copier function object that converts an input region to an output region.

Definition at line 161 of file itkImageToImageFilter.h.

template<class TInputImage, class TOutputImage>

typedef ImageToImageFilterDetail::ImageRegionCopier<itkGetStaticConstMacro(InputImageDimension), itkGetStaticConstMacro(OutputImageDimension)> itk::ImageToImageFilter< TInputImage, TOutputImage >::OutputToInputRegionCopierType [protected]

Typedef for the region copier function object that converts an output region to an input region.

Definition at line 166 of file itkImageToImageFilter.h.

template<class TOutputImage>

typedef DataObject::Pointer itk::ImageSource< TOutputImage >::DataObjectPointer [inherited]

Smart Pointer type to a DataObject.

Reimplemented from itk::ProcessObject.

Definition at line 62 of file itkImageSource.h.

template<class TOutputImage>

typedef TOutputImage itk::ImageSource< TOutputImage >::OutputImageType [inherited]

Some convenient typedefs.

Definition at line 65 of file itkImageSource.h.

typedef std::vector<DataObjectPointer> itk::ProcessObject::DataObjectPointerArray [inherited]

STL Array of SmartPointers to DataObjects

Definition at line 103 of file itkProcessObject.h.

typedef DataObjectPointerArray::size_type itk::ProcessObject::DataObjectPointerArraySizeType [inherited]

Size type of an std::vector

Definition at line 112 of file itkProcessObject.h.

typedef int itk::LightObject::InternalReferenceCountType [protected, inherited]

Define the type of the reference count according to the target. This allows the use of atomic operations

Definition at line 137 of file itkLightObject.h.

Member Function Documentation

template<class TInputImage, class TOutputImage>

virtual const char* itk::ImageToImageFilter< TInputImage, TOutputImage >::GetNameOfClass ( ) const [virtual]

Run-time type information (and related methods).

Reimplemented from itk::ImageSource< TOutputImage >.

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::SetInput ( const InputImageType * image ) [inline, virtual]

Set/Get the image input of this process object.

Reimplemented in otb::StreamingImageVirtualWriter< TInputImage >, and itk::WatershedImageFilter< TInputImage >.

Definition at line 55 of file itkImageToImageFilter.txx.

References itk::ProcessObject::SetNthInput().

00056 {
00057   // Process object is not const-correct so the const_cast is required here
00058   this->ProcessObject::SetNthInput(0, 
00059                                    const_cast< InputImageType * >( input ) );
00060 }

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::SetInput	(	unsigned int	index,
		const TInputImage *	image
	)			`[inline, virtual]`

Connect one of the operands for pixel-wise addition

Reimplemented in itk::WatershedImageFilter< TInputImage >.

Definition at line 69 of file itkImageToImageFilter.txx.

References itk::ProcessObject::SetNthInput().

00070 {
00071   // Process object is not const-correct so the const_cast is required here
00072   this->ProcessObject::SetNthInput(index, 
00073                                    const_cast< TInputImage *>( image ) );
00074 }

template<class TInputImage, class TOutputImage>

const ImageToImageFilter< TInputImage, TOutputImage >::InputImageType * itk::ImageToImageFilter< TInputImage, TOutputImage >::GetInput ( unsigned int idx ) [inline]

Method used internally for getting an input.

Reimplemented from itk::ProcessObject.

Reimplemented in otb::StreamingImageVirtualWriter< TInputImage >.

Definition at line 99 of file itkImageToImageFilter.txx.

References itk::ProcessObject::GetInput().

00100 {
00101   return static_cast< const TInputImage * >
00102     (this->ProcessObject::GetInput(idx));
00103 }

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::PushBackInput ( const InputImageType * image ) [inline, virtual]

Push/Pop the input of this process object. These methods allow a filter to model its input vector as a queue or stack. These routines may not be appropriate for all filters, especially filters with different types of inputs. These routines follow the semantics of STL.

The routines are useful for applications that need to process "rolling" sets of images. For instance, if an application has 10 images and they need to run a filter on images 1, 2, 3, 4, then run the filter on images 2, 3, 4, 5, then run the filter on images 3, 4, 5, 6, the application can accomplish this by popping an input off the front of the input list and push a new image onto the back of input list. Again, this only makes sense for filters that single type of input.

Other uses are also possible. For a single input filter, pushing and popping inputs allow the application to temporarily replace an input to a filter.

Definition at line 184 of file itkImageToImageFilter.txx.

References itk::ProcessObject::PushBackInput().

00185 {
00186   // Forward to the protected method in the superclass
00187   this->ProcessObject::PushBackInput(input);
00188 }

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::PopBackInput ( ) [inline, virtual]

Model a stack on the input list by providing a pop back

Reimplemented from itk::ProcessObject.

Definition at line 193 of file itkImageToImageFilter.txx.

References itk::ProcessObject::PopBackInput().

00194 {
00195   // Forward to the protected method in the superclass
00196   this->ProcessObject::PopBackInput();
00197 }

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::PrintSelf	(	std::ostream &	os,
		Indent	indent
	)			const `[inline, protected, virtual]`

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.

Chaining method to print an object's instance variables, as well as its superclasses.

Reimplemented from itk::ProcessObject.

Definition at line 176 of file itkImageToImageFilter.txx.

00177 {
00178   Superclass::PrintSelf(os, indent);
00179 }

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::GenerateInputRequestedRegion ( void ) [inline, protected, virtual]

What is the input requested region that is required to produce the output requested region? The base assumption for image processing filters is that the input requested region can be set to match the output requested region. If a filter requires more input (for instance a filter that uses neighborhoods needs more input than output to avoid introducing artificial boundary conditions) or less input (for instance a magnify filter) will have to override this method. In doing so, it should call its superclass' implementation as its first step. Note that imaging filters operate differently than the classes to this point in the class hierachy. Up till now, the base assumption has been that the largest possible region will be requested of the input.

This implementation of GenerateInputRequestedRegion() only processes the inputs that are a subclass of the ImageBase<InputImageDimension>. If an input is another type of DataObject (including an Image of a different dimension), they are skipped by this method. The subclasses of ImageToImageFilter are responsible for providing an implementation of GenerateInputRequestedRegion() when there are multiple inputs of different types.

See also:: ProcessObject::GenerateInputRequestedRegion(), ImageSource::GenerateInputRequestedRegion()

Reimplemented from itk::ProcessObject.

Definition at line 110 of file itkImageToImageFilter.txx.

References itk::ProcessObject::GetInput().

Referenced by otb::LeeImageFilter< TInputImage, TOutputImage >::GenerateInputRequestedRegion(), itk::FFTComplexToComplexImageFilter< TPixel, NDimension >::GenerateInputRequestedRegion(), itk::DirectFourierReconstructionImageToImageFilter< TInputPixelType, TOutputPixelType >::GenerateInputRequestedRegion(), otb::FrostImageFilter< TInputImage, TOutputImage >::GenerateInputRequestedRegion(), otb::ImageToModulusAndDirectionImageFilter< TInputImage, TOutputImage, TOutputImageDirection >::GenerateInputRequestedRegion(), and otb::PixelSuppressionByDirectionImageFilter< TInputImage, TOutputImage >::GenerateInputRequestedRegion().

00111 {
00112   Superclass::GenerateInputRequestedRegion();
00113 
00114   for (unsigned int idx = 0; idx < this->GetNumberOfInputs(); ++idx)
00115     {
00116     if (this->GetInput(idx))
00117       {
00118       // Check whether the input is an image of the appropriate
00119       // dimension (use ProcessObject's version of the GetInput()
00120       // method since it returns the input as a pointer to a
00121       // DataObject as opposed to the subclass version which
00122       // static_casts the input to an TInputImage).
00123       typedef ImageBase<InputImageDimension> ImageBaseType;
00124       typename ImageBaseType::ConstPointer constInput
00125         = dynamic_cast< ImageBaseType const *>( this->ProcessObject::GetInput(idx) );
00126 
00127       // If not an image, skip it, and let a subclass of
00128       // ImageToImageFilter handle this input.
00129       if (constInput.IsNull() )
00130         {
00131         continue;
00132         }
00133 
00134       // Input is an image, cast away the constness so we can set
00135       // the requested region.
00136       InputImagePointer input =
00137         const_cast< TInputImage * > ( this->GetInput(idx) );
00138 
00139       // Use the function object RegionCopier to copy the output region
00140       // to the input.  The default region copier has default implementations
00141       // to handle the cases where the input and output are the same
00142       // dimension, the input a higher dimension than the output, and the
00143       // input a lower dimension than the output.
00144       InputImageRegionType inputRegion;
00145       this->CallCopyOutputRegionToInputRegion(inputRegion, this->GetOutput()->GetRequestedRegion());
00146       input->SetRequestedRegion( inputRegion );
00147       }
00148     }  
00149 }

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::CallCopyOutputRegionToInputRegion	(	InputImageRegionType &	destRegion,
		const OutputImageRegionType &	srcRegion
	)			`[inline, protected, virtual]`

This function calls the actual region copier to do the mapping from output image space to input image space. It uses a Function object used for dispatching to various routines to copy an output region (start index and size) to an input region. For most filters, this is a trivial copy because most filters require the input dimension to match the output dimension. However, some filters like itk::ExtractImageFilter can support output images of a lower dimension that the input.

This function object can be used by GenerateOutputInformation() to copy the input LargestPossibleRegion to the output LargestPossibleRegion and can also be used in GenerateData or ThreadedGenerateData() where a filter may need to map an output region to an input region.

The default copier uses a "dispatch pattern" to call one of three overloaded functions depending on whether the input and output images are the same dimension, the input is a higher dimension that the output, or the input is of a lower dimension than the output. The use of an overloaded function is required for proper compilation of the various cases.

For the latter two cases, trivial implementations are used. If the input image is a higher dimension than the output, the output region information is copied into the first portion of the input region and the rest of the input region is set to zero. If the input region is a lower dimension than the output, the first portion of the output region is copied to the input region.

If a filter needs a different default behavior, it can override this method. The ExtractImageFilter overrides this function object so that if the input image is a higher dimension than the output image, the filter can control "where" in the input image the output subimage is extracted (as opposed to mapping to first few dimensions of the input).

Definition at line 154 of file itkImageToImageFilter.txx.

00156 {
00157   OutputToInputRegionCopierType regionCopier;
00158   regionCopier(destRegion, srcRegion);
00159 }

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::CallCopyInputRegionToOutputRegion	(	OutputImageRegionType &	destRegion,
		const InputImageRegionType &	srcRegion
	)			`[inline, protected, virtual]`

This function calls the actual region copier to do the mapping from input image space to output image space. It uses a Function object used for dispatching to various routines to copy an input region (start index and size) to an output region. For most filters, this is a trivial copy because most filters require the input dimension to match the output dimension. However, some filters like itk::UnaryFunctorImageFilter can support output images of a higher dimension that the input.

This function object is used by the default implementation of GenerateOutputInformation(). It can also be used in routines like ThreadedGenerateData() where a filter may need to map an input region to an output region.

The default copier uses a "dispatch pattern" to call one of three overloaded functions depending on whether the input and output images are the same dimension, the input is a higher dimension that the output, or the input is of a lower dimension than the output. The use of an overloaded function is required for proper compilation of the various cases.

For the latter two cases, trivial implementations are used. If the input image is a higher dimension than the output, the first portion of the input region is copied to the output region. If the input region is a lower dimension than the output, the input region information is copied into the first portion of the output region and the rest of the output region is set to zero.

If a filter needs a different default behavior, it can override this method.

Definition at line 165 of file itkImageToImageFilter.txx.

00167 {
00168   InputToOutputRegionCopierType regionCopier;
00169   regionCopier(destRegion, srcRegion);
00170 }

template<class TInputImage, class TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::PushBackInput ( const DataObject * input ) [inline, protected, virtual]

PushBackInput(), PushFronInput() in the public section force the input to be the type expected by an ImageToImageFilter. However, these methods end of "hiding" the versions from the superclass (ProcessObject) whose arguments are DataObjects. Here, we re-expose the versions from ProcessObject to avoid warnings about hiding methods from the superclass.

Reimplemented from itk::ProcessObject.

Definition at line 248 of file itkImageToImageFilter.h.

00249     { Superclass::PushBackInput(input); }

template<class TOutputImage>

ImageSource< TOutputImage >::OutputImageType * itk::ImageSource< TOutputImage >::GetOutput ( void ) [inline, inherited]

Get the output data of this process object. The output of this function is not valid until an appropriate Update() method has been called, either explicitly or implicitly. Both the filter itself and the data object have Update() methods, and both methods update the data. Here are three ways to use GetOutput() and make sure the data is valid. In these examples, image is a pointer to some Image object, and the particular ProcessObjects involved are filters. The same examples apply to non-image (e.g. Mesh) data as well.

   anotherFilter->SetInput( someFilter->GetOutput() );
   anotherFilter->Update();

In this situation, someFilter and anotherFilter are said to constitute a pipeline.

   image = someFilter->GetOutput();
   image->Update();

   someFilter->Update();
   image = someFilter->GetOutput();

(In the above example, the two lines of code can be in either order.)

Note that Update() is not called automatically except within a pipeline as in the first example. When streaming (using a StreamingImageFilter) is activated, it may be more efficient to use a pipeline than to call Update() once for each filter in turn.

For an image, the data generated is for the requested Region, which can be set using ImageBase::SetRequestedRegion(). By default, the largest possible region is requested.

For Filters which have multiple outputs of different types, the GetOutput() method assumes the output is of OutputImageType. For the GetOutput(unsigned int) method, a dynamic_cast is performed incase the filter has outputs of different types or image types. Derived classes should have names get methods for these outputs.

Reimplemented in otb::ImageToModulusAndDirectionImageFilter< TInputImage, TOutputImage, TOutputImageDirection >, otb::ImageToModulusAndDirectionImageFilter< TInputImage, TOutputImage, TOutputImageDirection >, otb::ImageToModulusAndDirectionImageFilter< TInputImage, TOutputModulus, TOutputDirection >, and otb::ImageToModulusAndDirectionImageFilter< TInputImage, TOutputModulus, TOutputDirection >.

Definition at line 66 of file itkImageSource.txx.

References itk::ProcessObject::GetOutput().

00067 {
00068   if (this->GetNumberOfOutputs() < 1)
00069     {
00070     return 0;
00071     }
00072 
00073   // we assume that the first output is of the templated type
00074   return static_cast<TOutputImage*>
00075     (this->ProcessObject::GetOutput(0));
00076 }

template<class TOutputImage>

ImageSource< TOutputImage >::OutputImageType * itk::ImageSource< TOutputImage >::GetOutput ( unsigned int idx ) [inline, inherited]

Method used internally for getting an output.

Reimplemented from itk::ProcessObject.

Definition at line 85 of file itkImageSource.txx.

References itk::ProcessObject::GetOutput().

00086 {
00087   TOutputImage* out = dynamic_cast<TOutputImage*>
00088     (this->ProcessObject::GetOutput(idx));
00089   if ( out == NULL ) {
00090     itkWarningMacro ( << "dynamic_cast to output type failed" );
00091   }
00092   return out;
00093 }

template<class TOutputImage>

void itk::ImageSource< TOutputImage >::GraftOutput ( DataObject * output ) [inline, virtual, inherited]

Graft the specified DataObject onto this ProcessObject's output. This method grabs a handle to the specified DataObject's bulk data to used as its output's own bulk data. It also copies the region ivars (RequestedRegion, BufferedRegion, LargestPossibleRegion) and meta-data (Spacing, Origin) from the specified data object into this filter's output data object. Most importantly, however, it leaves the Source ivar untouched so the original pipeline routing is intact. This method is used when a process object is implemented using a mini-pipeline which is defined in its GenerateData() method. The usage is:

    // setup the mini-pipeline to process the input to this filter
    firstFilterInMiniPipeline->SetInput( this->GetInput() );
   
    // setup the mini-pipeline to calculate the correct regions
    // and write to the appropriate bulk data block
    lastFilterInMiniPipeline->GraftOutput( this->GetOutput() );

    // execute the mini-pipeline
    lastFilterInMiniPipeline->Update();

    // graft the mini-pipeline output back onto this filter's output.
    // this is needed to get the appropriate regions passed back.
    this->GraftOutput( lastFilterInMiniPipeline->GetOutput() );

For proper pipeline execution, a filter using a mini-pipeline must implement the GenerateInputRequestedRegion(), GenerateOutputRequestedRegion(), GenerateOutputInformation() and EnlargeOutputRequestedRegion() methods as necessary to reflect how the mini-pipeline will execute (in other words, the outer filter's pipeline mechanism must be consistent with what the mini-pipeline will do).

Definition at line 101 of file itkImageSource.txx.

00102 {
00103   this->GraftNthOutput(0, graft);
00104 }

template<class TOutputImage>

void itk::ImageSource< TOutputImage >::GraftNthOutput	(	unsigned int	idx,
		DataObject *	output
	)			`[inline, virtual, inherited]`

Graft the specified data object onto this ProcessObject's idx'th output. This is similar to the GraftOutput method except it allows you to specify which output is affected. The specified index must be a valid output number (less than ProcessObject::GetNumberOfOutputs()). See the GraftOutput for general usage information.

Definition at line 113 of file itkImageSource.txx.

References itk::ProcessObject::GetOutput(), and itk::DataObject::Graft().

00114 {
00115   if ( idx >= this->GetNumberOfOutputs() )
00116     {
00117     itkExceptionMacro(<<"Requested to graft output " << idx << 
00118         " but this filter only has " << this->GetNumberOfOutputs() << " Outputs.");
00119     }  
00120 
00121   if ( !graft )
00122     {
00123     itkExceptionMacro(<<"Requested to graft output that is a NULL pointer" );
00124     }
00125 
00126   // we use the process object method since all out output may not be
00127   // of the same type
00128   DataObject * output = this->ProcessObject::GetOutput(idx);
00129 
00130   // Call GraftImage to copy meta-information, regions, and the pixel container
00131   output->Graft( graft );
00132 }

template<class TOutputImage>

ImageSource< TOutputImage >::DataObjectPointer itk::ImageSource< TOutputImage >::MakeOutput ( unsigned int idx ) [inline, virtual, inherited]

Make a DataObject of the correct type to used as the specified output. Every ProcessObject subclass must be able to create a DataObject that can be used as a specified output. This method is automatically called when DataObject::DisconnectPipeline() is called. DataObject::DisconnectPipeline, disconnects a data object from being an output of its current source. When the data object is disconnected, the ProcessObject needs to construct a replacement output data object so that the ProcessObject is in a valid state. So DataObject::DisconnectPipeline eventually calls ProcessObject::MakeOutput. Note that MakeOutput always returns a SmartPointer to a DataObject. If a subclass of ImageSource has multiple outputs of different types, then that class must provide an implementation of MakeOutput().

Reimplemented from itk::ProcessObject.

Definition at line 55 of file itkImageSource.txx.

00056 {
00057   return static_cast<DataObject*>(TOutputImage::New().GetPointer());
00058 }

template<class TOutputImage>

void itk::ImageSource< TOutputImage >::GenerateData ( void ) [inline, protected, virtual, inherited]

A version of GenerateData() specific for image processing filters. This implementation will split the processing across multiple threads. The buffer is allocated by this method. Then the BeforeThreadedGenerateData() method is called (if provided). Then, a series of threads are spawned each calling ThreadedGenerateData(). After all the threads have completed processing, the AfterThreadedGenerateData() method is called (if provided). If an image processing filter cannot be threaded, the filter should provide an implementation of GenerateData(). That implementation is responsible for allocating the output buffer. If a filter an be threaded, it should NOT provide a GenerateData() method but should provide a ThreadedGenerateData() instead.

See also:: ThreadedGenerateData()

Reimplemented from itk::ProcessObject.

Definition at line 225 of file itkImageSource.txx.

References itk::ImageSource< TOutputImage >::ThreadStruct::Filter.

00226 {
00227   // Call a method that can be overriden by a subclass to allocate
00228   // memory for the filter's outputs
00229   this->AllocateOutputs();
00230   
00231   // Call a method that can be overridden by a subclass to perform
00232   // some calculations prior to splitting the main computations into
00233   // separate threads
00234   this->BeforeThreadedGenerateData();
00235   
00236   // Set up the multithreaded processing
00237   ThreadStruct str;
00238   str.Filter = this;
00239   
00240   this->GetMultiThreader()->SetNumberOfThreads(this->GetNumberOfThreads());
00241   this->GetMultiThreader()->SetSingleMethod(this->ThreaderCallback, &str);
00242   
00243   // multithread the execution
00244   this->GetMultiThreader()->SingleMethodExecute();
00245 
00246   // Call a method that can be overridden by a subclass to perform
00247   // some calculations after all the threads have completed
00248   this->AfterThreadedGenerateData();
00249 
00250 }

template<class TOutputImage>

void itk::ImageSource< TOutputImage >::ThreadedGenerateData	(	const OutputImageRegionType &	outputRegionForThread,
		int	threadId
	)			`[inline, protected, virtual, inherited]`

If an imaging filter can be implemented as a multithreaded algorithm, the filter will provide an implementation of ThreadedGenerateData(). This superclass will automatically split the output image into a number of pieces, spawn multiple threads, and call ThreadedGenerateData() in each thread. Prior to spawning threads, the BeforeThreadedGenerateData() method is called. After all the threads have completed, the AfterThreadedGenerateData() method is called. If an image processing filter cannot support threading, that filter should provide an implementation of the GenerateData() method instead of providing an implementation of ThreadedGenerateData(). If a filter provides a GenerateData() method as its implementation, then the filter is responsible for allocating the output data. If a filter provides a ThreadedGenerateData() method as its implementation, then the output memory will allocated automatically by this superclass. The ThreadedGenerateData() method should only produce the output specified by "outputThreadRegion" parameter. ThreadedGenerateData() cannot write to any other portion of the output image (as this is responsibility of a different thread).

See also:: GenerateData(), SplitRequestedRegion()

Definition at line 258 of file itkImageSource.txx.

00260 {
00261 // The following code is equivalent to:
00262 // itkExceptionMacro("subclass should override this method!!!");
00263 // The ExceptionMacro is not used because gcc warns that a 
00264 // 'noreturn' function does return
00265   OStringStream message;
00266   message << "itk::ERROR: " << this->GetNameOfClass()
00267           << "(" << this << "): " << "Subclass should override this method!!!";
00268   ExceptionObject e_(__FILE__, __LINE__, message.str().c_str(),ITK_LOCATION);
00269   throw e_;
00270 }

template<class TOutputImage>

void itk::ImageSource< TOutputImage >::AllocateOutputs ( ) [inline, protected, virtual, inherited]

The GenerateData method normally allocates the buffers for all of the outputs of a filter. Some filters may want to override this default behavior. For example, a filter may have multiple outputs with varying resolution. Or a filter may want to process data in place by grafting its input to its output.

Definition at line 197 of file itkImageSource.txx.

References itk::ProcessObject::GetOutput().

Referenced by itk::ReconstructionImageFilter< TInputImage, TOutputImage, TCompare >::GenerateData().

00198 {  
00199   typedef ImageBase<OutputImageDimension> ImageBaseType;
00200   typename ImageBaseType::Pointer outputPtr;
00201 
00202   // Allocate the output memory
00203   for (unsigned int i=0; i < this->GetNumberOfOutputs(); i++)
00204     {
00205     
00206     // Check whether the output is an image of the appropriate
00207     // dimension (use ProcessObject's version of the GetInput()
00208     // method since it returns the input as a pointer to a
00209     // DataObject as opposed to the subclass version which
00210     // static_casts the input to an TInputImage).
00211     outputPtr = dynamic_cast< ImageBaseType *>( this->ProcessObject::GetOutput(i) );
00212 
00213     if ( outputPtr )
00214       {
00215       outputPtr->SetBufferedRegion( outputPtr->GetRequestedRegion() );
00216       outputPtr->Allocate();
00217       }
00218     }
00219 }

template<class TOutputImage>

virtual void itk::ImageSource< TOutputImage >::BeforeThreadedGenerateData ( void ) [inline, protected, virtual, inherited]

If an imaging filter needs to perform processing after the buffer has been allocated but before threads are spawned, the filter can can provide an implementation for BeforeThreadedGenerateData(). The execution flow in the default GenerateData() method will be: 1) Allocate the output buffer 2) Call BeforeThreadedGenerateData() 3) Spawn threads, calling ThreadedGenerateData() in each thread. 4) Call AfterThreadedGenerateData() Note that this flow of control is only available if a filter provides a ThreadedGenerateData() method and NOT a GenerateData() method.

Definition at line 252 of file itkImageSource.h.

Referenced by otb::RenderingImageFilter< TInputImage, TOutputImage >::BeforeThreadedGenerateData().

00252 {};

template<class TOutputImage>

virtual void itk::ImageSource< TOutputImage >::AfterThreadedGenerateData ( void ) [inline, protected, virtual, inherited]

If an imaging filter needs to perform processing after all processing threads have completed, the filter can can provide an implementation for AfterThreadedGenerateData(). The execution flow in the default GenerateData() method will be: 1) Allocate the output buffer 2) Call BeforeThreadedGenerateData() 3) Spawn threads, calling ThreadedGenerateData() in each thread. 4) Call AfterThreadedGenerateData() Note that this flow of control is only available if a filter provides a ThreadedGenerateData() method and NOT a GenerateData() method.

Definition at line 264 of file itkImageSource.h.

00264 {};

template<class TOutputImage>

int itk::ImageSource< TOutputImage >::SplitRequestedRegion	(	int	i,
		int	num,
		OutputImageRegionType &	splitRegion
	)			`[inline, protected, virtual, inherited]`

Split the output's RequestedRegion into "num" pieces, returning region "i" as "splitRegion". This method is called "num" times. The regions must not overlap. The method returns the number of pieces that the routine is capable of splitting the output RequestedRegion, i.e. return value is less than or equal to "num".

Reimplemented in itk::SignedMaurerDistanceMapImageFilter< TInputImage, TOutputImage >.

Definition at line 138 of file itkImageSource.txx.

Referenced by itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >::ApplyUpdateThreaderCallback(), itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >::CalculateChangeThreaderCallback(), itk::CannyEdgeDetectionImageFilter< TInputImage, TOutputImage >::Compute2ndDerivativePosThreaderCallback(), and itk::CannyEdgeDetectionImageFilter< TInputImage, TOutputImage >::Compute2ndDerivativeThreaderCallback().

00139 {
00140   // Get the output pointer
00141   OutputImageType * outputPtr = this->GetOutput();
00142   const typename TOutputImage::SizeType& requestedRegionSize 
00143     = outputPtr->GetRequestedRegion().GetSize();
00144 
00145   int splitAxis;
00146   typename TOutputImage::IndexType splitIndex;
00147   typename TOutputImage::SizeType splitSize;
00148 
00149   // Initialize the splitRegion to the output requested region
00150   splitRegion = outputPtr->GetRequestedRegion();
00151   splitIndex = splitRegion.GetIndex();
00152   splitSize = splitRegion.GetSize();
00153 
00154   // split on the outermost dimension available
00155   splitAxis = outputPtr->GetImageDimension() - 1;
00156   while (requestedRegionSize[splitAxis] == 1)
00157     {
00158     --splitAxis;
00159     if (splitAxis < 0)
00160       { // cannot split
00161       itkDebugMacro("  Cannot Split");
00162       return 1;
00163       }
00164     }
00165 
00166   // determine the actual number of pieces that will be generated
00167   typename TOutputImage::SizeType::SizeValueType range = requestedRegionSize[splitAxis];
00168   int valuesPerThread = Math::Ceil<int>(range/(double)num);
00169   int maxThreadIdUsed = Math::Ceil<int>(range/(double)valuesPerThread) - 1;
00170 
00171   // Split the region
00172   if (i < maxThreadIdUsed)
00173     {
00174     splitIndex[splitAxis] += i*valuesPerThread;
00175     splitSize[splitAxis] = valuesPerThread;
00176     }
00177   if (i == maxThreadIdUsed)
00178     {
00179     splitIndex[splitAxis] += i*valuesPerThread;
00180     // last thread needs to process the "rest" dimension being split
00181     splitSize[splitAxis] = splitSize[splitAxis] - i*valuesPerThread;
00182     }
00183   
00184   // set the split region ivars
00185   splitRegion.SetIndex( splitIndex );
00186   splitRegion.SetSize( splitSize );
00187 
00188   itkDebugMacro("  Split Piece: " << splitRegion );
00189 
00190   return maxThreadIdUsed + 1;
00191 }

template<class TOutputImage>

ITK_THREAD_RETURN_TYPE itk::ImageSource< TOutputImage >::ThreaderCallback ( void * arg ) [inline, static, protected, inherited]

Static function used as a "callback" by the MultiThreader. The threading library will call this routine for each thread, which will delegate the control to ThreadedGenerateData().

Definition at line 278 of file itkImageSource.txx.

References itk::ImageSource< TOutputImage >::ThreadStruct::Filter.

00279 {
00280   ThreadStruct *str;
00281   int total, threadId, threadCount;
00282 
00283   threadId = ((MultiThreader::ThreadInfoStruct *)(arg))->ThreadID;
00284   threadCount = ((MultiThreader::ThreadInfoStruct *)(arg))->NumberOfThreads;
00285 
00286   str = (ThreadStruct *)(((MultiThreader::ThreadInfoStruct *)(arg))->UserData);
00287 
00288   // execute the actual method with appropriate output region
00289   // first find out how many pieces extent can be split into.
00290   typename TOutputImage::RegionType splitRegion;
00291   total = str->Filter->SplitRequestedRegion(threadId, threadCount,
00292                                             splitRegion);
00293 
00294   if (threadId < total)
00295     {
00296     str->Filter->ThreadedGenerateData(splitRegion, threadId);
00297     }
00298   // else
00299   //   {
00300   //   otherwise don't use this thread. Sometimes the threads dont
00301   //   break up very well and it is just as efficient to leave a 
00302   //   few threads idle.
00303   //   }
00304   
00305   return ITK_THREAD_RETURN_VALUE;
00306 }

DataObjectPointerArray& itk::ProcessObject::GetInputs ( ) [inline, inherited]

Return an array with all the inputs of this process object. This is useful for tracing back in the pipeline to construct graphs etc.

Definition at line 108 of file itkProcessObject.h.

00109     {return m_Inputs;}

DataObjectPointerArraySizeType itk::ProcessObject::GetNumberOfInputs ( ) const [inline, inherited]

Get the size of the input vector. This is merely the size of the input vector, not the number of inputs that have valid DataObject's assigned. Use GetNumberOfValidRequiredInputs() to determine how many inputs are non-null.

Definition at line 118 of file itkProcessObject.h.

Referenced by otb::ModulusAndDirectionImageToImageFilter< TInputImage, TInputImageDirection, TOutputImage >::GetInput(), and otb::ModulusAndDirectionImageToImageFilter< TInputImage, TInputImageDirection, TOutputImage >::GetInputDirection().

00119     {return m_Inputs.size();}

ProcessObject::DataObjectPointerArraySizeType itk::ProcessObject::GetNumberOfValidRequiredInputs ( ) const [virtual, inherited]

Get the number of valid inputs. This is the number of non-null entries in the input vector in the first NumberOfRequiredInputs slots. This method is used to determine whether the necessary required inputs have been set. Subclasses of ProcessObject may override this implementation if the required inputs are not the first slots in input vector.

Get the number of specified inputs

Reimplemented in itk::MultiResolutionPDEDeformableRegistration< TFixedImage, TMovingImage, TDeformationField, TRealType >, and itk::PDEDeformableRegistrationFilter< TFixedImage, TMovingImage, TDeformationField >.

Definition at line 112 of file itkProcessObject.cxx.

00113 {
00114   DataObjectPointerArraySizeType num;
00115   if (m_NumberOfRequiredInputs < m_Inputs.size())
00116     {
00117     num = m_NumberOfRequiredInputs;
00118     }
00119   else
00120     {
00121     num = m_Inputs.size();
00122     }
00123   // count the number of non-null inputs
00124   // this used to use std::count_if, but that function object
00125   // did not work correctly with SunPro CC 5.6.
00126   int count = 0;
00127   for(std::vector<DataObjectPointer>::const_iterator i = m_Inputs.begin();
00128       i < (m_Inputs.begin() + num); ++i)
00129     {
00130     if((*i).IsNotNull())
00131       {
00132       count++;
00133       }
00134     }
00135   return count;
00136 }

DataObjectPointerArray& itk::ProcessObject::GetOutputs ( ) [inline, inherited]

Return an array with all the outputs of this process object. This is useful for tracing forward in the pipeline to contruct graphs etc.

Definition at line 133 of file itkProcessObject.h.

Referenced by itk::watershed::Segmenter< TInputImage >::GenerateOutputRequestedRegion().

00134     { return m_Outputs; }

virtual void itk::ProcessObject::SetAbortGenerateData ( bool _arg ) [virtual, inherited]

Set the AbortGenerateData flag for the process object. Process objects may handle premature termination of execution in different ways.

virtual const bool& itk::ProcessObject::GetAbortGenerateData ( ) [virtual, inherited]

Get the AbortGenerateData flag for the process object. Process objects may handle premature termination of execution in different ways.

virtual void itk::ProcessObject::AbortGenerateDataOn ( ) [virtual, inherited]

Turn on and off the AbortGenerateData flag.

virtual void itk::ProcessObject::SetProgress ( float _arg ) [virtual, inherited]

Set the execution progress of a process object. The progress is a floating number in [0,1] with 0 meaning no progress and 1 meaning the filter has completed execution. The ProgressEvent is NOT invoked.

virtual const float& itk::ProcessObject::GetProgress ( ) [virtual, inherited]

Get the execution progress of a process object. The progress is a floating number in [0,1] with 0 meaning no progress and 1 meaning the filter has completed execution.

Referenced by itk::WatershedMiniPipelineProgressCommand::Execute(), itk::LaplacianRecursiveGaussianImageFilter< TInputImage, TOutputImage >::ReportProgress(), and itk::XMLFilterWatcher::ShowProgress().

void itk::ProcessObject::UpdateProgress ( float amount ) [inherited]

Update the progress of the process object.

Sets the Progress ivar to amount and invokes any observers for the ProgressEvent. The parameter amount should be in [0,1] and is the cumulative (not incremental) progress.

Update the progress of the process object. If a ProgressMethod exists, execute it. Then set the Progress ivar to amount. The parameter amount should range between (0,1).

Definition at line 500 of file itkProcessObject.cxx.

Referenced by itk::watershed::Segmenter< TInputImage >::GenerateData(), itk::ProgressReporter::ProgressReporter(), and itk::ProgressReporter::~ProgressReporter().

00501 {
00502   m_Progress = amount;
00503   this->InvokeEvent( ProgressEvent() );
00504 }

void itk::ProcessObject::Update ( void ) [virtual, inherited]

Bring this filter up-to-date. Update() checks modified times against last execution times, and re-executes objects if necessary. A side effect of this method is that the whole pipeline may execute in order to bring this filter up-to-date. This method updates the currently prescribed requested region. If no requested region has been set on the output, then the requested region will be set to the largest possible region. Once the requested region is set, Update() will make sure the specified requested region is up-to-date. This is a confusing side effect to users who are just calling Update() on a filter. A first call to Update() will cause the largest possible region to be updated. A second call to Update() will update that same region. If a modification to the upstream pipeline cause a filter to have a different largest possible region, this second call to Update() will not cause the output requested region to be reset to the new largest possible region. Instead, the output requested region will be the same as the last time Update() was called. To have a filter always to produce its largest possible region, users should call UpdateLargestPossibleRegion() instead.

The following methods are used to coordinate the execution of the data processing pipeline.

Reimplemented in otb::PersistentFilterStreamingDecorator< TFilter >, otb::ImageSeriesFileReaderBase< TImage, TInternalImage >, otb::SpatialObjectDXFReader< TSpatialObject >, otb::VectorDataFileWriter< TInputVectorData >, otb::ConfusionMatrixCalculator< TRefListLabel, TProdListLabel >, otb::ListSampleGenerator< TImage, TVectorData >, otb::RCC8GraphFileWriter< TInputGraph >, otb::ImageViewer< TPixel, TLabel >, otb::ImageViewerBase< TPixel, TLabel >, itk::CoreAtomImageToUnaryCorrespondenceMatrixProcess< TSourceImage >, itk::MedialNodePairCorrespondenceProcess< TSourceImage >, itk::MedialNodeTripletCorrespondenceProcess< TSourceImage >, itk::CoreAtomImageToDistanceMatrixProcess< TSourceImage >, itk::ImageFileWriter< TInputImage >, itk::ImageSeriesWriter< TInputImage, TOutputImage >, otb::PersistentFilterStreamingDecorator< otb::PersistentMatrixTransposeMatrixImageFilter< TInputImage1, TInputImage2 > >, otb::PersistentFilterStreamingDecorator< otb::PersistentStatisticsImageFilter< TInputImage > >, otb::PersistentFilterStreamingDecorator< otb::PersistentInnerProductVectorImageFilter< TInputImage > >, otb::PersistentFilterStreamingDecorator< otb::PersistentLineSegmentDetector< TInputImage, TPrecision > >, otb::PersistentFilterStreamingDecorator< otb::PersistentStatisticsVectorImageFilter< TInputImage > >, otb::ImageSeriesFileReaderBase< otb::VectorImage< TPixel, 2 >, otb::VectorImage< TInternalPixel, 2 > >, otb::ImageSeriesFileReaderBase< otb::Image< TPixel, 2 >, otb::VectorImage< TInternalPixel, 2 > >, and otb::ImageSeriesFileReaderBase< otb::Image< TPixel, 2 >, otb::Image< TInternalPixel, 2 > >.

Definition at line 611 of file itkProcessObject.cxx.

00612 {
00613   if (this->GetOutput(0))
00614     {
00615     this->GetOutput(0)->Update();
00616     }
00617 }

void itk::ProcessObject::UpdateLargestPossibleRegion ( ) [virtual, inherited]

Like Update(), but sets the output requested region to the largest possible region for the output. This is the method users should call if they want the entire dataset to be processed. If a user wants to update the same output region as a previous call to Update() or a previous call to UpdateLargestPossibleRegion(), then they should call the method Update().

Definition at line 1120 of file itkProcessObject.cxx.

01121 {
01122   this->UpdateOutputInformation();
01123 
01124   if (this->GetOutput(0))
01125     {
01126     this->GetOutput(0)->SetRequestedRegionToLargestPossibleRegion();
01127     this->GetOutput(0)->Update();
01128     }
01129 }

void itk::ProcessObject::UpdateOutputInformation ( void ) [virtual, inherited]

Update the information decribing the output data. This method transverses up the pipeline gathering modified time information. On the way back down the pipeline, this method calls GenerateOutputInformation() to set any necessary information about the output data objects. For instance, a filter that shrinks an image will need to provide an implementation for GenerateOutputInformation() that changes the spacing of the pixels. Such filters should call their superclass' implementation of GenerateOutputInformation prior to changing the information values they need (i.e. GenerateOutputInformation() should call Superclass::GenerateOutputInformation() prior to changing the information.

Watch out for loops in the pipeline

Since we are in a loop, we will want to update. But if we don't modify this filter, then we will not execute because our OutputInformationMTime will be more recent than the MTime of our output.

We now wish to set the PipelineMTime of each output DataObject to the largest of this ProcessObject's MTime, all input DataObject's PipelineMTime, and all input's MTime. We begin with the MTime of this ProcessObject.

Loop through the inputs

Propagate the UpdateOutputInformation call

What is the PipelineMTime of this input? Compare this against our current computation to find the largest one.

Pipeline MTime of the input does not include the MTime of the data object itself. Factor these mtimes into the next PipelineMTime

Call GenerateOutputInformation for subclass specific information. Since UpdateOutputInformation propagates all the way up the pipeline, we need to be careful here to call GenerateOutputInformation only if necessary. Otherwise, we may cause this source to be modified which will cause it to execute again on the next update.

Keep track of the last time GenerateOutputInformation() was called

Reimplemented in itk::watershed::Segmenter< TInputImage >, and itk::VTKImageImport< TOutputImage >.

Definition at line 664 of file itkProcessObject.cxx.

References itk::Object::GetMTime(), itk::DataObject::GetPipelineMTime(), itk::DataObject::SetPipelineMTime(), and itk::DataObject::UpdateOutputInformation().

Referenced by itk::VTKImageExportBase::UpdateInformationCallback(), and itk::watershed::Segmenter< TInputImage >::UpdateOutputInformation().

00665 {
00666   unsigned long t1, t2;
00667   DataObjectPointerArraySizeType idx;
00668   DataObject *input;
00669   DataObject *output;
00670 
00674   if ( m_Updating )
00675     {
00682     this->Modified();
00683     return;
00684     }
00685 
00692   t1 = this->GetMTime();
00693 
00697   for (idx = 0; idx < m_Inputs.size(); ++idx)
00698     {
00699     if (m_Inputs[idx])
00700       {
00701       input = m_Inputs[idx];
00702 
00706       m_Updating = true;
00707       input->UpdateOutputInformation();
00708       m_Updating = false;
00709       
00714       t2 = input->GetPipelineMTime();
00715 
00716       if (t2 > t1)
00717         {
00718         t1 = t2;
00719         }
00720 
00725       t2 = input->GetMTime();
00726       if (t2 > t1)
00727         {
00728         t1 = t2;
00729         }
00730       }
00731     }
00732 
00740   if (t1 > m_OutputInformationMTime.GetMTime())
00741     {
00742     for (idx = 0; idx < m_Outputs.size(); ++idx)
00743       {
00744       output = this->GetOutput( static_cast<int>( idx ) );
00745       if (output)
00746         {
00747         output->SetPipelineMTime(t1);
00748         }  
00749       }
00750     
00751     this->GenerateOutputInformation();
00752 
00756     m_OutputInformationMTime.Modified();
00757     }
00758 }

void itk::ProcessObject::PropagateRequestedRegion ( DataObject * output ) [virtual, inherited]

Send the requested region information back up the pipeline (to the filters that preceed this one).

check flag to avoid executing forever if there is a loop

Give the subclass a chance to indicate that it will provide more data then required for the output. This can happen, for example, when a source can only produce the whole output. Although this is being called for a specific output, the source may need to enlarge all outputs.

Give the subclass a chance to define how to set the requested regions for each of its outputs, given this output's requested region. The default implementation is to make all the output requested regions the same. A subclass may need to override this method if each output is a different resolution.

Give the subclass a chance to request a larger requested region on the inputs. This is necessary when, for example, a filter requires more data at the "internal" boundaries to produce the boundary values - such as an image filter that derives a new pixel value by applying some operation to a neighborhood of surrounding original values.

Now that we know the input requested region, propagate this through all the inputs.

Reimplemented in itk::StreamingImageFilter< TInputImage, TOutputImage >, and itk::VTKImageImport< TOutputImage >.

Definition at line 766 of file itkProcessObject.cxx.

00767 {
00771   if (m_Updating)
00772     {
00773     return;
00774     }
00775 
00783   this->EnlargeOutputRequestedRegion( output );
00784 
00792   this->GenerateOutputRequestedRegion( output );
00793   
00802   this->GenerateInputRequestedRegion();
00803 
00808   m_Updating = true;
00809   DataObjectPointerArraySizeType idx;
00810   for (idx = 0; idx < m_Inputs.size(); ++idx)
00811     {
00812     if (m_Inputs[idx])
00813       {
00814       m_Inputs[idx]->PropagateRequestedRegion();
00815       }
00816     }
00817   m_Updating = false;
00818 }

void itk::ProcessObject::UpdateOutputData ( DataObject * output ) [virtual, inherited]

Actually generate new output

prevent chasing our tail

Prepare all the outputs. This may deallocate previous bulk data.

Propagate the update call - make sure everything we might rely on is up-to-date Must call PropagateRequestedRegion before UpdateOutputData if multiple inputs since they may lead back to the same data object.

Cache the state of any ReleaseDataFlag's on the inputs. While the filter is executing, we need to set the ReleaseDataFlag's on the inputs to false in case the current filter is implemented using a mini-pipeline (which will try to release the inputs). After the filter finishes, we restore the state of the ReleaseDataFlag's before the call to ReleaseInputs().

Tell all Observers that the filter is starting

GenerateData this object - we have not aborted yet, and our progress before we start to execute is 0.0.

Count the number of required inputs which have been assigned

If we ended due to aborting, push the progress up to 1.0 (since it probably didn't end there)

Notify end event observers

Now we have to mark the data as up to date.

Restore the state of any input ReleaseDataFlags

Release any inputs if marked for release

Reimplemented in otb::StreamingShrinkImageFilter< TInputImage, TOutputImage >, otb::StreamingImageFileWriter< TInputImage >, and itk::StreamingImageFilter< TInputImage, TOutputImage >.

Definition at line 908 of file itkProcessObject.cxx.

00909 {
00910   DataObjectPointerArraySizeType idx;
00911 
00915   if (m_Updating)
00916     {
00917     return;
00918     }
00919 
00923   this->PrepareOutputs();
00924 
00931   m_Updating = true;
00932   if ( m_Inputs.size() == 1 )
00933     {
00934     if (m_Inputs[0])
00935       {
00936       m_Inputs[0]->UpdateOutputData();
00937       }
00938     }
00939   else
00940     {
00941     for (idx = 0; idx < m_Inputs.size(); ++idx)
00942       {
00943       if (m_Inputs[idx])
00944         {
00945         m_Inputs[idx]->PropagateRequestedRegion();
00946         m_Inputs[idx]->UpdateOutputData();
00947         }
00948       }
00949     }
00950 
00959   this->CacheInputReleaseDataFlags();
00960   
00964   this->InvokeEvent( StartEvent() );
00965 
00970   m_AbortGenerateData = false;
00971   m_Progress = 0.0f;
00972 
00976   DataObjectPointerArraySizeType ninputs = this->GetNumberOfValidRequiredInputs();
00977   if (ninputs < m_NumberOfRequiredInputs)
00978     {
00979     itkExceptionMacro(<< "At least " << m_NumberOfRequiredInputs 
00980                       << " inputs are required but only " << ninputs 
00981                       << " are specified.");
00982     }
00983   else
00984     {
00985     try
00986       {
00987       this->GenerateData();
00988       }
00989     catch( ProcessAborted & excp )
00990       {
00991       this->InvokeEvent( AbortEvent() );
00992       this->ResetPipeline();
00993       this->RestoreInputReleaseDataFlags();
00994       throw excp;
00995       }
00996     catch( ExceptionObject& excp )
00997       {
00998       this->ResetPipeline();
00999       this->RestoreInputReleaseDataFlags();
01000       throw excp;
01001       }
01002     }
01003 
01009   if ( m_AbortGenerateData )
01010     {
01011     this->UpdateProgress(1.0f);
01012     }
01013 
01017   this->InvokeEvent( EndEvent() );
01018 
01022   for (idx = 0; idx < m_Outputs.size(); ++idx)
01023     {
01024     if (m_Outputs[idx])
01025       {
01026       m_Outputs[idx]->DataHasBeenGenerated();
01027       }
01028     }
01029   
01033   this->RestoreInputReleaseDataFlags();
01034   
01038   this->ReleaseInputs();
01039   
01040   // Mark that we are no longer updating the data in this filter
01041   m_Updating = false;
01042 }

virtual void itk::ProcessObject::EnlargeOutputRequestedRegion ( DataObject * ) [inline, virtual, inherited]

Give the process object a chance to indictate that it will produce more output than it was requested to produce. For example, many imaging filters must compute the entire output at once or can only produce output in complete slices. Such filters cannot handle smaller requested regions. These filters must provide an implementation of this method, setting the output requested region to the size they will produce. By default, a process object does not modify the size of the output requested region.

Definition at line 224 of file itkProcessObject.h.

00224 {};

void itk::ProcessObject::ResetPipeline ( ) [virtual, inherited]

Reset the pipeline. If an exception is thrown during an Update(), the pipeline may be in an inconsistent state. This method clears the internal state of the pipeline so Update() can be called.

Definition at line 621 of file itkProcessObject.cxx.

00622 {
00623   if (this->GetOutput(0))
00624     {
00625     this->GetOutput(0)->ResetPipeline();
00626     }
00627 }

void itk::ProcessObject::SetReleaseDataFlag ( bool flag ) [virtual, inherited]

Turn on/off the flags to control whether the bulk data belonging to the outputs of this ProcessObject are released after being used by a downstream ProcessObject. Default value is off. Another options for controlling memory utilization is the ReleaseDataBeforeUpdateFlag.

Definition at line 528 of file itkProcessObject.cxx.

00529 {
00530   unsigned int idx;
00531   
00532   for (idx = 0; idx < m_Outputs.size(); idx++)
00533     {
00534     if (m_Outputs[idx])
00535       {
00536       m_Outputs[idx]->SetReleaseDataFlag(val);
00537       }
00538     }
00539 }

virtual void itk::ProcessObject::SetReleaseDataBeforeUpdateFlag ( bool _arg ) [virtual, inherited]

Turn on/off the flags to control whether the bulk data belonging to the outputs of this ProcessObject are released/reallocated during an Update(). In limited memory scenarios, a user may want to force the elements of a pipeline to release any bulk data that is going to be regenerated anyway during an Update() in order to control peak memory allocation. Note that this flag is different from the ReleaseDataFlag. ReleaseDataFlag manages the deallocation of a ProcessObject's bulk output data once that data has been consumed by a downstream ProcessObject. The ReleaseDataBeforeUpdateFlag manages the deallocation/reallocation of bulk data during a pipeline update to control peak memory utilization. Default value is on.

virtual void itk::ProcessObject::SetNumberOfThreads ( int _arg ) [virtual, inherited]

Get/Set the number of threads to create when executing.

MultiThreader* itk::ProcessObject::GetMultiThreader ( ) [inline, inherited]

Return the multithreader used by this class.

Definition at line 280 of file itkProcessObject.h.

00281     {return m_Threader;}

void itk::ProcessObject::PrepareOutputs ( ) [virtual, inherited]

An opportunity to deallocate a ProcessObject's bulk data storage. Some filters may wish to reuse existing bulk data storage to avoid unnecessary deallocation/allocation sequences. The default implementation calls Initialize() on each output. DataObject::Initialize() frees its bulk data by default.

Reimplemented in itk::WatershedImageFilter< TInputImage >.

Definition at line 864 of file itkProcessObject.cxx.

00865 {  
00866   unsigned int idx;
00867   
00868   if (this->GetReleaseDataBeforeUpdateFlag())
00869     {
00870     for (idx = 0; idx < m_Outputs.size(); idx++)
00871       {
00872       if (m_Outputs[idx])
00873         {
00874         m_Outputs[idx]->PrepareForNewData(); 
00875         }
00876       }
00877     }
00878 }

void itk::ProcessObject::SetNthInput	(	unsigned int	idx,
		DataObject *	input
	)			`[protected, virtual, inherited]`

Protected methods for setting inputs. Subclasses make use of them for setting input.

Set an Input of this filter. This method does Register()/UnRegister() manually to deal with the fact that smart pointers aren't around to do the reference counting.

Reimplemented in itk::ImageToVectorImageFilter< TInputImage >.

Definition at line 210 of file itkProcessObject.cxx.

00211 {
00212   // does this change anything?
00213   if ( idx < m_Inputs.size() && m_Inputs[idx] == input )
00214     {
00215     return;
00216     }
00217   
00218   // Expand array if necessary.
00219   if (idx >= m_Inputs.size())
00220     {
00221     this->SetNumberOfInputs(idx + 1);
00222     }
00223   
00224   m_Inputs[idx] = input;
00225 
00226   this->Modified();
00227 }

void itk::ProcessObject::AddInput ( DataObject * input ) [protected, virtual, inherited]

Adds an input to the first null position in the input list. Expands the list memory if necessary

Definition at line 144 of file itkProcessObject.cxx.

00145 {
00146   DataObjectPointerArraySizeType idx;
00147   
00148   this->Modified();
00149   
00150   for (idx = 0; idx < m_Inputs.size(); ++idx)
00151     {
00152     if (!m_Inputs[idx])
00153       {
00154       m_Inputs[idx] = input;
00155       return;
00156       }
00157     }
00158   
00159   this->SetNumberOfInputs( static_cast<int>( m_Inputs.size() + 1 ) );
00160   m_Inputs[ static_cast<int>( m_Inputs.size() ) - 1] = input;
00161 }

void itk::ProcessObject::RemoveInput ( DataObject * input ) [protected, virtual, inherited]

Remove an input.

Removes the first occurence of the given OutputObject from the inputs to this ProcessObject. If it's the last object on the list, shortens the list.

Definition at line 173 of file itkProcessObject.cxx.

00174 {
00175   if (!input)
00176     {
00177     return;
00178     }
00179   
00180   // find the input in the list of inputs
00181   DataObjectPointerArray::iterator pos = 
00182     std::find(m_Inputs.begin(), m_Inputs.end(), input);
00183 
00184   if(pos == m_Inputs.end())
00185     {
00186     itkDebugMacro("tried to remove an input that was not in the list");
00187     return;
00188     }
00189 
00190   // Set the position in the m_Inputs containing input to 0
00191   *pos = 0;
00192 
00193   // if that was the last input, then shrink the list
00194   if (pos == m_Inputs.end() - 1 )
00195     {
00196     this->SetNumberOfInputs( static_cast<int>( m_Inputs.size() ) - 1);
00197     }
00198 
00199   this->Modified();
00200 }

void itk::ProcessObject::SetNumberOfInputs ( unsigned int num ) [protected, inherited]

Called to allocate the input array. Copies old inputs.

Called by constructor to set up input array.

Definition at line 96 of file itkProcessObject.cxx.

00097 {
00098   // in case nothing has changed.
00099   if (num == m_Inputs.size())
00100     {
00101     return;
00102     }
00103   m_Inputs.resize(num);
00104   this->Modified();
00105 }

void itk::ProcessObject::SetNthOutput	(	unsigned int	idx,
		DataObject *	output
	)			`[protected, virtual, inherited]`

Protected methods for setting outputs. Subclasses make use of them for getting output.

Set an output of this filter. This method specifically does not do a Register()/UnRegister() because of the desire to break the reference counting loop.

Definition at line 333 of file itkProcessObject.cxx.

References itk::DataObject::ConnectSource().

Referenced by itk::CoreAtomImageToDistanceMatrixProcess< TSourceImage >::CoreAtomImageToDistanceMatrixProcess(), itk::CoreAtomImageToUnaryCorrespondenceMatrixProcess< TSourceImage >::CoreAtomImageToUnaryCorrespondenceMatrixProcess(), otb::FillGapsFilter::FillGapsFilter(), itk::ImageRegistrationMethod< TFixedImage, TMovingImage >::ImageRegistrationMethod(), itk::ImageToSpatialObjectRegistrationMethod< TFixedImage, TMovingSpatialObject >::ImageToSpatialObjectRegistrationMethod(), itk::MedialNodePairCorrespondenceProcess< TSourceImage >::MedialNodePairCorrespondenceProcess(), itk::MedialNodeTripletCorrespondenceProcess< TSourceImage >::MedialNodeTripletCorrespondenceProcess(), itk::MultiResolutionImageRegistrationMethod< TFixedImage, TMovingImage >::MultiResolutionImageRegistrationMethod(), itk::MultiScaleHessianBasedMeasureImageFilter< TInputImage, THessianImage, TOutputImage >::MultiScaleHessianBasedMeasureImageFilter(), itk::PointSetToImageRegistrationMethod< TFixedPointSet, TMovingImage >::PointSetToImageRegistrationMethod(), itk::PointSetToPointSetRegistrationMethod< TFixedPointSet, TMovingPointSet >::PointSetToPointSetRegistrationMethod(), itk::RegularSphereMeshSource< TOutputMesh >::RegularSphereMeshSource(), itk::watershed::BoundaryResolver< TPixelType, TDimension >::SetEquivalencyTable(), itk::MeshSource< TOutputMesh >::SetOutput(), itk::watershed::Relabeler< InputImageType::PixelType, itkGetStaticConstMacro(ImageDimension)>::SetOutputImage(), itk::watershed::EquivalenceRelabeler< TScalarType, TImageDimension >::SetOutputImage(), and itk::SphereMeshSource< TOutputMesh >::SphereMeshSource().

00334 {
00335   // does this change anything?
00336   if ( idx < m_Outputs.size() && output == m_Outputs[idx])
00337     {
00338     return;
00339     }
00340 
00341   // Expand array if necessary.
00342   if (idx >= m_Outputs.size())
00343     {
00344     this->SetNumberOfOutputs(idx + 1);
00345     }
00346 
00347   // Keep a handle to the original output and disconnect the old output from
00348   // the pipeline
00349   DataObjectPointer oldOutput;
00350   if ( m_Outputs[idx] )
00351     {
00352     oldOutput = m_Outputs[idx];
00353     m_Outputs[idx]->DisconnectSource(this, idx);
00354     }
00355 
00356   if (output)
00357     {
00358     output->ConnectSource(this, idx);
00359     }
00360   // save the current reference (which releases the previous reference)
00361   m_Outputs[idx] = output;
00362 
00363   // if we are clearing an output, we need to create a new blank output
00364   // so we are prepared for the next Update(). this copies the requested
00365   // region ivar
00366   if (!m_Outputs[idx])
00367     {
00368     itkDebugMacro( " creating new output object." );
00369     DataObjectPointer newOutput = this->MakeOutput(idx);
00370     this->SetNthOutput(idx, newOutput);
00371 
00372     // If we had an output object before, copy the requested region
00373     // ivars and release data flag to the the new output
00374     if (oldOutput)
00375       {
00376       newOutput->SetRequestedRegion( oldOutput );
00377       newOutput->SetReleaseDataFlag( oldOutput->GetReleaseDataFlag() );
00378       }
00379     }
00380 
00381   this->Modified();
00382 }

void itk::ProcessObject::AddOutput ( DataObject * output ) [protected, virtual, inherited]

Adds an output to the first null position in the output list. Expands the list memory if necessary

Definition at line 390 of file itkProcessObject.cxx.

References itk::DataObject::ConnectSource().

00391 {
00392   unsigned int idx;
00393   
00394   for (idx = 0; idx < m_Outputs.size(); ++idx)
00395     {
00396     if ( m_Outputs[idx].IsNull() )
00397       {
00398       m_Outputs[idx] = output;
00399 
00400       if (output)
00401         {
00402         output->ConnectSource(this, idx);
00403         }
00404       this->Modified();
00405   
00406       return;
00407       }
00408     }
00409   
00410   this->SetNumberOfOutputs( static_cast<int>( m_Outputs.size() ) + 1);
00411   m_Outputs[ static_cast<int>( m_Outputs.size() ) - 1] = output;
00412   if (output)
00413     {
00414     output->ConnectSource(this, static_cast<int>( m_Outputs.size() ) - 1 );
00415     }
00416   this->Modified();
00417 }

void itk::ProcessObject::SetNumberOfOutputs ( unsigned int num ) [protected, inherited]

Called to allocate the output array. Copies old outputs.

Called by constructor to set up output array.

Definition at line 424 of file itkProcessObject.cxx.

00425 {
00426 
00427   // in case nothing has changed.
00428   if (num == m_Outputs.size())
00429     {
00430     return;
00431     }
00432   m_Outputs.resize(num);
00433   this->Modified();
00434 }

void itk::ProcessObject::GenerateOutputRequestedRegion ( DataObject * output ) [protected, virtual, inherited]

Given one output whose requested region has been set, how should the requested regions for the remaining outputs of the process object be set? By default, all the outputs are set to the same requested region. If a filter needs to produce different requested regions for each output, for instance an image processing filter producing several outputs at different resolutions, then that filter may override this method and set the requested regions appropriatedly.

Note that a filter producing multiple outputs of different types is required to override this method. The default implementation can only correctly handle multiple outputs of the same type.

By default we set all the output requested regions to be the same.

Reimplemented in itk::MultiResolutionPyramidImageFilter< TInputImage, TOutputImage >, itk::RecursiveMultiResolutionPyramidImageFilter< TInputImage, TOutputImage >, itk::watershed::BoundaryResolver< TPixelType, TDimension >, itk::watershed::EquivalenceRelabeler< TScalarType, TImageDimension >, itk::watershed::Relabeler< TScalarType, TImageDimension >, itk::watershed::Segmenter< TInputImage >, itk::watershed::SegmentTreeGenerator< TScalarType >, itk::watershed::Relabeler< InputImageType::PixelType, itkGetStaticConstMacro(ImageDimension)>, and itk::watershed::SegmentTreeGenerator< InputImageType::PixelType >.

Definition at line 846 of file itkProcessObject.cxx.

00847 {
00848   DataObjectPointerArraySizeType idx;
00849   for (idx = 0; idx < m_Outputs.size(); ++idx)
00850     {
00851     if (m_Outputs[idx] && m_Outputs[idx] != output)
00852       {
00853       m_Outputs[idx]->SetRequestedRegion(output);
00854       }
00855     }  
00856 }

void itk::ProcessObject::GenerateOutputInformation ( void ) [protected, virtual, inherited]

Generate the information decribing the output data. The default implementation of this method will copy information from the input to the output. A filter may override this method if its output will have different information than its input. For instance, a filter that shrinks an image will need to provide an implementation for this method that changes the spacing of the pixels. Such filters should call their superclass' implementation of this method prior to changing the information values they need (i.e. GenerateOutputInformation() should call Superclass::GenerateOutputInformation() prior to changing the information.

Default implementation - copy information from first input to all outputs

Definition at line 1095 of file itkProcessObject.cxx.

Referenced by itk::FFTComplexToComplexImageFilter< TPixel, NDimension >::GenerateOutputInformation(), and itk::DirectFourierReconstructionImageToImageFilter< TInputPixelType, TOutputPixelType >::GenerateOutputInformation().

01096 {
01097   DataObjectPointer input, output;
01098 
01099   if (m_Inputs.size() && m_Inputs[0])
01100     {
01101     input = m_Inputs[0];
01102 
01103     for (unsigned int idx = 0; idx < m_Outputs.size(); ++idx)
01104       {
01105       output = this->GetOutput(idx);
01106       if (output)
01107         {
01108         output->CopyInformation(input);
01109         }  
01110       }
01111     }
01112 }

void itk::ProcessObject::PropagateResetPipeline ( ) [protected, virtual, inherited]

Called to allocate the input array. Copies old inputs. Propagate a call to ResetPipeline() up the pipeline. Called only from DataObject.

Propagate the ResetPipeline call

Definition at line 631 of file itkProcessObject.cxx.

00632 {
00633   // 
00634   // Reset this object.
00635   //
00636   // Clear the updating flag.
00637   m_Updating = 0;
00638 
00639   //
00640   // Loop through the inputs
00641   //
00642   unsigned int idx;
00643   DataObject::Pointer input;
00644   for (idx = 0; idx < m_Inputs.size(); ++idx)
00645     {
00646     if (m_Inputs[idx])
00647       {
00648       input = m_Inputs[idx];
00649 
00653       input->PropagateResetPipeline();
00654       }
00655     }
00656 }

void itk::ProcessObject::ReleaseInputs ( ) [protected, virtual, inherited]

A filter may need to release its input's bulk data after it has finished calculating a new output. The filter may need to release the inputs because the user has turned on the ReleaseDataFlag or it may need to release the inputs because the filter is an "in place" filter and it has overwritten its input with its output data. The implementation here simply checks the ReleaseDataFlag of the inputs. InPlaceImageFilter overrides this method so release the input it has overwritten.

See also:: InPlaceImageFilter::ReleaseInputs()

Definition at line 886 of file itkProcessObject.cxx.

Referenced by itk::watershed::Segmenter< TInputImage >::GenerateData(), itk::InPlaceLabelMapFilter< TInputImage >::ReleaseInputs(), and itk::InPlaceImageFilter< TInputImage, TOutputImage >::ReleaseInputs().

00887 {  
00888   unsigned int idx;
00889 
00890   for (idx = 0; idx < m_Inputs.size(); ++idx)
00891     {
00892     if (m_Inputs[idx])
00893       {
00894       if ( m_Inputs[idx]->ShouldIReleaseData() )
00895         {
00896         m_Inputs[idx]->ReleaseData();
00897         }
00898       }  
00899     }
00900 }

void itk::ProcessObject::CacheInputReleaseDataFlags ( ) [protected, virtual, inherited]

Cache the state of any ReleaseDataFlag's on the inputs. While the filter is executing, we need to set the ReleaseDataFlag's on the inputs to false in case the current filter is implemented using a mini-pipeline (which will try to release the inputs). After the filter finishes, we restore the state of the ReleaseDataFlag's before the call to ReleaseInputs().

Definition at line 1050 of file itkProcessObject.cxx.

01051 {
01052   unsigned int idx;
01053   
01054   m_CachedInputReleaseDataFlags.resize( m_Inputs.size() );
01055   for (idx = 0; idx < m_Inputs.size(); ++idx)
01056     {
01057     if (m_Inputs[idx])
01058       {
01059       m_CachedInputReleaseDataFlags[idx]=m_Inputs[idx]->GetReleaseDataFlag();
01060       m_Inputs[idx]->ReleaseDataFlagOff();
01061       }
01062     else
01063       {
01064       m_CachedInputReleaseDataFlags[idx] = false;
01065       }
01066     }
01067 }

void itk::ProcessObject::RestoreInputReleaseDataFlags ( ) [protected, virtual, inherited]

Restore the cached input ReleaseDataFlags.

Definition at line 1075 of file itkProcessObject.cxx.

01076 {
01077   unsigned int idx;
01078   
01079   for (idx = 0;
01080        idx < m_Inputs.size() && idx < m_CachedInputReleaseDataFlags.size();
01081        ++idx)
01082     {
01083     if (m_Inputs[idx])
01084       {
01085       m_Inputs[idx]->SetReleaseDataFlag(m_CachedInputReleaseDataFlags[idx]);
01086       }
01087     }
01088 }

Object::Pointer itk::Object::New ( void ) [static, inherited]

Method for creation through the object factory.

Reimplemented from itk::LightObject.

Definition at line 217 of file itkObject.cxx.

References itk::Object::UnRegister().

Referenced by itk::Object::CreateAnother(), itk::ProcessObject::MakeOutput(), itk::MultipleValuedVnlCostFunctionAdaptor::MultipleValuedVnlCostFunctionAdaptor(), and itk::SingleValuedVnlCostFunctionAdaptor::SingleValuedVnlCostFunctionAdaptor().

00218 {
00219   Pointer smartPtr;
00220   Object *rawPtr = ::itk::ObjectFactory<Object>::Create();
00221   if(rawPtr == NULL)
00222     {
00223     rawPtr = new Object;
00224     }
00225   smartPtr = rawPtr;
00226   rawPtr->UnRegister();
00227   return smartPtr;
00228 }

LightObject::Pointer itk::Object::CreateAnother ( void ) const [virtual, inherited]

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::LightObject.

Definition at line 231 of file itkObject.cxx.

References itk::SmartPointer< TObjectType >::GetPointer(), and itk::Object::New().

00232 {
00233   return Object::New().GetPointer();
00234 }

void itk::Object::DebugOn ( ) const [virtual, inherited]

Turn debugging output on.

Definition at line 242 of file itkObject.cxx.

References itk::Object::m_Debug.

00243 {
00244   m_Debug = true;
00245 }

void itk::Object::DebugOff ( ) const [virtual, inherited]

Turn debugging output off.

Definition at line 253 of file itkObject.cxx.

References itk::Object::m_Debug.

00254 {
00255   m_Debug = false;
00256 }

bool itk::Object::GetDebug ( ) const [inherited]

Get the value of the debug flag.

Definition at line 264 of file itkObject.cxx.

References itk::Object::m_Debug.

00265 {
00266   return m_Debug;
00267 }

void itk::Object::SetDebug ( bool debugFlag ) const [inherited]

Set the value of the debug flag. A non-zero value turns debugging on.

Definition at line 275 of file itkObject.cxx.

References itk::Object::m_Debug.

00276 {
00277   m_Debug = debugFlag;
00278 }

unsigned long itk::Object::GetMTime ( void ) const [virtual, inherited]

Return this objects modified time.

Return the modification for this object.

Definition at line 286 of file itkObject.cxx.

References itk::TimeStamp::GetMTime(), and itk::Object::m_MTime.

Referenced by itk::BoundingBox< TPointIdentifier, VPointDimension, TCoordRep, TPointsContainer >::GetMTime(), itk::ResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >::GetMTime(), itk::DeformationFieldSource< TOutputImage >::GetMTime(), itk::SpatialObject< TDimension >::GetMTime(), itk::TransformToDeformationFieldSource< TOutputImage, TTransformPrecisionType >::GetMTime(), itk::InverseDeformationFieldImageFilter< TInputImage, TOutputImage >::GetMTime(), itk::VectorResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >::GetMTime(), itk::SpatialObject< ::itk::GetMeshDimension< TMesh >::PointDimension >::GetObjectMTime(), otb::Function::StandardRenderingFunction< TPixel, TRGBPixel, TPixelRepresentationFunction, TTransferFunction >::Initialize(), itk::VTKImageExportBase::PipelineModifiedCallback(), itk::Object::PrintSelf(), and itk::ProcessObject::UpdateOutputInformation().

00287 {
00288   return m_MTime.GetMTime();
00289 }

void itk::Object::Modified ( void ) const [virtual, inherited]

Update the modification time for this object. Many filters rely on the modification time to determine if they need to recompute their data.

Make sure this object's modified time is greater than all others.

Definition at line 297 of file itkObject.cxx.

References itk::Object::InvokeEvent(), itk::Object::m_MTime, and itk::TimeStamp::Modified().

00298 {
00299   m_MTime.Modified();
00300   InvokeEvent( ModifiedEvent() );
00301 }

void itk::Object::Register ( ) const [virtual, inherited]

Increase the reference count (mark as used by another object).

Reimplemented from itk::LightObject.

Definition at line 309 of file itkObject.cxx.

References itk::LightObject::m_ReferenceCount, and itk::LightObject::Register().

Referenced by itk::ObjectFactoryBase::RegisterFactory().

00310 {
00311   itkDebugMacro(<< "Registered, "
00312                 << "ReferenceCount = " << (m_ReferenceCount+1));
00313 
00314   // call the parent
00315   Superclass::Register();
00316 }

void itk::Object::UnRegister ( ) const [virtual, inherited]

Decrease the reference count (release by another object).

If there is a delete method, invoke it.

Reimplemented from itk::LightObject.

Definition at line 324 of file itkObject.cxx.

References itk::Object::InvokeEvent(), itk::LightObject::m_ReferenceCount, and itk::LightObject::UnRegister().

Referenced by itk::Object::New(), itk::SmartPointer< itk::Statistics::ImageToListAdaptor >::operator=(), and itk::ObjectFactoryBase::UnRegisterFactory().

00325 {
00326   // call the parent
00327   itkDebugMacro(<< "UnRegistered, "
00328                 << "ReferenceCount = " << (m_ReferenceCount-1));
00329 
00330   if ( (m_ReferenceCount-1) <= 0)
00331     {
00335     this->InvokeEvent(DeleteEvent());
00336     }
00337 
00338   Superclass::UnRegister();
00339 }

void itk::Object::SetReferenceCount ( int ref ) [virtual, inherited]

Sets the reference count (use with care)

If there is a delete method, invoke it.

Reimplemented from itk::LightObject.

Definition at line 347 of file itkObject.cxx.

References itk::Object::InvokeEvent(), and itk::LightObject::SetReferenceCount().

00348 {
00349   itkDebugMacro(<< "Reference Count set to " << ref);
00350 
00351   // ReferenceCount in now unlocked.  We may have a race condition to
00352   // to delete the object.
00353   if( ref <= 0 )
00354     {
00358     this->InvokeEvent(DeleteEvent());
00359     }
00360 
00361   Superclass::SetReferenceCount(ref);
00362 }

void itk::Object::SetGlobalWarningDisplay ( bool val ) [static, inherited]

This is a global flag that controls whether any debug, warning or error messages are displayed.

Set the value of the global debug output control flag.

Definition at line 370 of file itkObject.cxx.

References itk::Object::m_GlobalWarningDisplay.

00371 {
00372   m_GlobalWarningDisplay = val;
00373 }

bool itk::Object::GetGlobalWarningDisplay ( ) [static, inherited]

Get the value of the global debug output control flag.

Definition at line 381 of file itkObject.cxx.

References itk::Object::m_GlobalWarningDisplay.

00382 {
00383   return m_GlobalWarningDisplay;
00384 }

unsigned long itk::Object::AddObserver	(	const EventObject &	event,
		Command *	cmd
	)			`[inherited]`

Allow people to add/remove/invoke observers (callbacks) to any ITK object. This is an implementation of the subject/observer design pattern. An observer is added by specifying an event to respond to and an itk::Command to execute. It returns an unsigned long tag which can be used later to remove the event or retrieve the command. The memory for the Command becomes the responsibility of this object, so don't pass the same instance of a command to two different objects

Definition at line 389 of file itkObject.cxx.

References itk::Object::m_SubjectImplementation.

Referenced by itk::ProgressAccumulator::RegisterInternalFilter(), and otb::WriterWatcherBase::WriterWatcherBase().

00390 {
00391   if (!this->m_SubjectImplementation)
00392     {
00393     this->m_SubjectImplementation = new SubjectImplementation;
00394     }
00395   return this->m_SubjectImplementation->AddObserver(event,cmd);
00396 }

Command * itk::Object::GetCommand ( unsigned long tag ) [inherited]

Get the command associated with the given tag. NOTE: This returns a pointer to a Command, but it is safe to asign this to a Command::Pointer. Since Command inherits from LightObject, at this point in the code, only a pointer or a reference to the Command can be used.

Definition at line 414 of file itkObject.cxx.

References itk::Object::m_SubjectImplementation.

00415 {
00416   if (this->m_SubjectImplementation)
00417     {
00418     return this->m_SubjectImplementation->GetCommand(tag);
00419     }
00420   return NULL;
00421 }

void itk::Object::InvokeEvent ( const EventObject & event ) [inherited]

Call Execute on all the Commands observing this event id.

Definition at line 446 of file itkObject.cxx.

References itk::Object::m_SubjectImplementation.

Referenced by itk::Object::Modified(), itk::Object::SetReferenceCount(), itk::CumulativeGaussianOptimizer::StartOptimization(), itk::Object::UnRegister(), and itk::VTKImageExportBase::UpdateDataCallback().

00447 {
00448   if (this->m_SubjectImplementation)
00449     {
00450     this->m_SubjectImplementation->InvokeEvent(event,this);
00451     }
00452 }

void itk::Object::InvokeEvent ( const EventObject & event ) const [inherited]

Call Execute on all the Commands observing this event id. The actions triggered by this call doesn't modify this object.

Definition at line 457 of file itkObject.cxx.

References itk::Object::m_SubjectImplementation.

00458 {
00459   if (this->m_SubjectImplementation)
00460     {
00461     this->m_SubjectImplementation->InvokeEvent(event,this);
00462     }
00463 }

void itk::Object::RemoveObserver ( unsigned long tag ) [inherited]

Remove the observer with this tag value.

Definition at line 425 of file itkObject.cxx.

References itk::Object::m_SubjectImplementation.

00426 {
00427   if (this->m_SubjectImplementation)
00428     {
00429     this->m_SubjectImplementation->RemoveObserver(tag);
00430     }
00431 }

void itk::Object::RemoveAllObservers ( ) [inherited]

Remove all observers .

Definition at line 435 of file itkObject.cxx.

References itk::Object::m_SubjectImplementation.

00436 {
00437   if (this->m_SubjectImplementation)
00438     {
00439     this->m_SubjectImplementation->RemoveAllObservers();
00440     }
00441 }

bool itk::Object::HasObserver ( const EventObject & event ) const [inherited]

Return true if an observer is registered for this event.

Definition at line 467 of file itkObject.cxx.

References itk::Object::m_SubjectImplementation.

00468 {
00469   if (this->m_SubjectImplementation)
00470     {
00471     return this->m_SubjectImplementation->HasObserver(event);
00472     }
00473   return false;
00474 }

MetaDataDictionary & itk::Object::GetMetaDataDictionary ( void ) [inherited]

Returns:: A reference to this objects MetaDataDictionary.

Warning:: This reference may be changed.

Definition at line 532 of file itkObject.cxx.

References itk::Object::m_MetaDataDictionary.

00533 {
00534   if(m_MetaDataDictionary==NULL)
00535     {
00536     m_MetaDataDictionary=new MetaDataDictionary;
00537     }
00538   return *m_MetaDataDictionary;
00539 }

const MetaDataDictionary & itk::Object::GetMetaDataDictionary ( void ) const [inherited]

Returns:: A constant reference to this objects MetaDataDictionary.

Definition at line 543 of file itkObject.cxx.

References itk::Object::m_MetaDataDictionary.

00544 {
00545   if(m_MetaDataDictionary==NULL)
00546     {
00547     m_MetaDataDictionary=new MetaDataDictionary;
00548     }
00549   return *m_MetaDataDictionary;
00550 }

void itk::Object::SetMetaDataDictionary ( const MetaDataDictionary & rhs ) [inherited]

Returns:: Set the MetaDataDictionary

Definition at line 554 of file itkObject.cxx.

References itk::Object::m_MetaDataDictionary.

Referenced by otb::Image< TPixel, VImageDimension >::CopyInformation(), and otb::VectorImage< TPixel, VImageDimension >::CopyInformation().

00555 {
00556   if(m_MetaDataDictionary==NULL)
00557     {
00558     m_MetaDataDictionary=new MetaDataDictionary;
00559     }
00560   *m_MetaDataDictionary=rhs;
00561 }

void itk::LightObject::Delete ( ) [virtual, inherited]

Delete an itk object. This method should always be used to delete an object when the new operator was used to create it. Using the C delete method will not work with reference counting.

Delete a itk object. This method should always be used to delete an object when the new operator was used to create it. Using the C++ delete method will not work with reference counting.

Definition at line 88 of file itkLightObject.cxx.

References itk::LightObject::UnRegister().

00089 {
00090   this->UnRegister();
00091 }

void itk::LightObject::Print	(	std::ostream &	os,
		Indent	indent = `0`
	)			const `[inherited]`

Cause the object to print itself out.

Avoid DLL boundary problems. This function will be common to all itk objects. It just calls the header/self/trailer virtual print methods, which can be overriden by subclasses (any itk object).

Definition at line 135 of file itkLightObject.cxx.

References itk::Indent::GetNextIndent(), itk::LightObject::PrintHeader(), itk::LightObject::PrintSelf(), and itk::LightObject::PrintTrailer().

Referenced by itk::operator<<(), itk::WeakPointer< itk::ProcessObject >::Print(), and itk::SmartPointer< itk::Statistics::ImageToListAdaptor >::Print().

00136 {
00137   this->PrintHeader(os, indent); 
00138   this->PrintSelf(os, indent.GetNextIndent());
00139   this->PrintTrailer(os, indent);
00140 }

void itk::LightObject::BreakOnError ( ) [static, inherited]

This method is called when itkExceptionMacro executes. It allows the debugger to break on error.

Definition at line 149 of file itkLightObject.cxx.

00150 {
00151   ;  
00152 }

virtual int itk::LightObject::GetReferenceCount ( ) const [inline, virtual, inherited]

Gets the reference count on this object.

Definition at line 105 of file itkLightObject.h.

00106     {return static_cast<int>(m_ReferenceCount);}

void itk::LightObject::PrintHeader	(	std::ostream &	os,
		Indent	indent
	)			const `[protected, virtual, inherited]`

Define a default print header for all objects.

Definition at line 320 of file itkLightObject.cxx.

References itk::LightObject::GetNameOfClass().

Referenced by itk::LightObject::Print().

00321 {
00322   os << indent << this->GetNameOfClass() << " (" << this << ")\n";
00323 }

void itk::LightObject::PrintTrailer	(	std::ostream &	os,
		Indent	indent
	)			const `[protected, virtual, inherited]`

Define a default print trailer for all objects.

Definition at line 331 of file itkLightObject.cxx.

Referenced by itk::LightObject::Print().

00332 {
00333 }

Member Data Documentation

template<class TInputImage, class TOutputImage>

const unsigned int itk::ImageToImageFilter< TInputImage, TOutputImage >::InputImageDimension = TInputImage::ImageDimension [static]

ImageDimension constants

Definition at line 90 of file itkImageToImageFilter.h.

template<class TInputImage, class TOutputImage>

const unsigned int itk::ImageToImageFilter< TInputImage, TOutputImage >::OutputImageDimension = TOutputImage::ImageDimension [static]

ImageDimension constant

Reimplemented from itk::ImageSource< TOutputImage >.

Definition at line 92 of file itkImageToImageFilter.h.

bool itk::ProcessObject::m_Updating [protected, inherited]

These ivars are made protected so filters like itkStreamingImageFilter can access them directly. This flag indicates when the pipeline is executing. It prevents infinite recursion when pipelines have loops.

Reimplemented in otb::HistogramAndTransferFunctionWidget< THistogram, TPixel >, and otb::ImageViewerBase< TPixel, TLabel >.

Definition at line 418 of file itkProcessObject.h.

TimeStamp itk::ProcessObject::m_OutputInformationMTime [protected, inherited]

Time when GenerateOutputInformation was last called.

Definition at line 421 of file itkProcessObject.h.

InternalReferenceCountType itk::LightObject::m_ReferenceCount [mutable, protected, inherited]

Number of uses of this object by other objects.

Definition at line 141 of file itkLightObject.h.

Referenced by itk::LightObject::PrintSelf(), itk::LightObject::Register(), itk::Object::Register(), itk::LightObject::SetReferenceCount(), itk::LightObject::UnRegister(), itk::Object::UnRegister(), and itk::LightObject::~LightObject().

SimpleFastMutexLock itk::LightObject::m_ReferenceCountLock [mutable, protected, inherited]

Mutex lock to protect modification to the reference count

Definition at line 144 of file itkLightObject.h.

Referenced by itk::LightObject::Register(), itk::LightObject::SetReferenceCount(), and itk::LightObject::UnRegister().

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


Public Types
typedef ImageToImageFilter	Self
typedef ImageSource< TOutputImage >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef Superclass::OutputImageRegionType	OutputImageRegionType
typedef Superclass::OutputImagePixelType	OutputImagePixelType
typedef TInputImage	InputImageType
typedef InputImageType::Pointer	InputImagePointer
typedef InputImageType::ConstPointer	InputImageConstPointer
typedef InputImageType::RegionType	InputImageRegionType
typedef InputImageType::PixelType	InputImagePixelType
typedef DataObject::Pointer	DataObjectPointer
typedef TOutputImage	OutputImageType
typedef OutputImageType::Pointer	OutputImagePointer
typedef std::vector < DataObjectPointer >	DataObjectPointerArray
typedef DataObjectPointerArray::size_type	DataObjectPointerArraySizeType
Public Member Functions
virtual const char *	GetNameOfClass () const
virtual void	SetInput (const InputImageType *image)
virtual void	SetInput (unsigned int, const TInputImage *image)
const InputImageType *	GetInput (void)
const InputImageType *	GetInput (unsigned int idx)
virtual void	PushBackInput (const InputImageType *image)
virtual void	PopBackInput ()
virtual void	PushFrontInput (const InputImageType *image)
virtual void	PopFrontInput ()
OutputImageType *	GetOutput (void)
OutputImageType *	GetOutput (unsigned int idx)
virtual void	GraftOutput (DataObject *output)
virtual void	GraftNthOutput (unsigned int idx, DataObject *output)
virtual DataObjectPointer	MakeOutput (unsigned int idx)
DataObjectPointerArray &	GetInputs ()
DataObjectPointerArraySizeType	GetNumberOfInputs () const
virtual DataObjectPointerArraySizeType	GetNumberOfValidRequiredInputs () const
DataObjectPointerArray &	GetOutputs ()
DataObjectPointerArraySizeType	GetNumberOfOutputs () const
virtual void	SetAbortGenerateData (bool _arg)
virtual const bool &	GetAbortGenerateData ()
virtual void	AbortGenerateDataOn ()
virtual void	AbortGenerateDataOff ()
virtual void	SetProgress (float _arg)
virtual const float &	GetProgress ()
void	UpdateProgress (float amount)
virtual void	Update ()
virtual void	UpdateLargestPossibleRegion ()
virtual void	UpdateOutputInformation ()
virtual void	PropagateRequestedRegion (DataObject *output)
virtual void	UpdateOutputData (DataObject *output)
virtual void	EnlargeOutputRequestedRegion (DataObject *)
virtual void	ResetPipeline ()
virtual void	SetReleaseDataFlag (bool flag)
virtual bool	GetReleaseDataFlag () const
void	ReleaseDataFlagOn ()
void	ReleaseDataFlagOff ()
virtual void	SetReleaseDataBeforeUpdateFlag (bool _arg)
virtual const bool &	GetReleaseDataBeforeUpdateFlag ()
virtual void	ReleaseDataBeforeUpdateFlagOn ()
virtual void	ReleaseDataBeforeUpdateFlagOff ()
virtual void	SetNumberOfThreads (int _arg)
virtual const int &	GetNumberOfThreads ()
MultiThreader *	GetMultiThreader ()
virtual void	PrepareOutputs ()
virtual LightObject::Pointer	CreateAnother () const
virtual void	DebugOn () const
virtual void	DebugOff () const
bool	GetDebug () const
void	SetDebug (bool debugFlag) const
virtual unsigned long	GetMTime () const
virtual void	Modified () const
virtual void	Register () const
virtual void	UnRegister () const
virtual void	SetReferenceCount (int)
unsigned long	AddObserver (const EventObject &event, Command *)
unsigned long	AddObserver (const EventObject &event, Command *) const
Command *	GetCommand (unsigned long tag)
void	InvokeEvent (const EventObject &)
void	InvokeEvent (const EventObject &) const
void	RemoveObserver (unsigned long tag)
void	RemoveAllObservers ()
bool	HasObserver (const EventObject &event) const
MetaDataDictionary &	GetMetaDataDictionary (void)
const MetaDataDictionary &	GetMetaDataDictionary (void) const
void	SetMetaDataDictionary (const MetaDataDictionary &rhs)
virtual void	Delete ()
void	Print (std::ostream &os, Indent indent=0) const
virtual int	GetReferenceCount () const
Static Public Member Functions
static Pointer	New ()
static void	SetGlobalWarningDisplay (bool flag)
static bool	GetGlobalWarningDisplay ()
static void	GlobalWarningDisplayOn ()
static void	GlobalWarningDisplayOff ()
static void	BreakOnError ()
Static Public Attributes
static const unsigned int	InputImageDimension = TInputImage::ImageDimension
static const unsigned int	OutputImageDimension = TOutputImage::ImageDimension
Protected Types
typedef ImageToImageFilterDetail::ImageRegionCopier < itkGetStaticConstMacro(OutputImageDimension), itkGetStaticConstMacro(InputImageDimension)>	InputToOutputRegionCopierType
typedef ImageToImageFilterDetail::ImageRegionCopier < itkGetStaticConstMacro(InputImageDimension), itkGetStaticConstMacro(OutputImageDimension)>	OutputToInputRegionCopierType
typedef int	InternalReferenceCountType
Protected Member Functions
virtual void	PrintSelf (std::ostream &os, Indent indent) const
virtual void	GenerateInputRequestedRegion ()
virtual void	CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion)
virtual void	CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion)
void	PushBackInput (const DataObject *input)
void	PushFrontInput (const DataObject *input)
const DataObject *	GetOutput (unsigned int idx) const
virtual void	GenerateData ()
virtual void	ThreadedGenerateData (const OutputImageRegionType &outputRegionForThread, int threadId) ITK_NO_RETURN
virtual void	AllocateOutputs ()
virtual void	BeforeThreadedGenerateData ()
virtual void	AfterThreadedGenerateData ()
virtual int	SplitRequestedRegion (int i, int num, OutputImageRegionType &splitRegion)
virtual void	SetNthInput (unsigned int num, DataObject *input)
virtual void	AddInput (DataObject *input)
virtual void	RemoveInput (DataObject *input)
virtual void	SetNumberOfRequiredInputs (unsigned int _arg)
virtual const unsigned int &	GetNumberOfRequiredInputs ()
void	SetNumberOfInputs (unsigned int num)
const DataObject *	GetInput (unsigned int idx) const
virtual void	SetNthOutput (unsigned int num, DataObject *output)
virtual void	AddOutput (DataObject *output)
virtual void	RemoveOutput (DataObject *output)
virtual void	SetNumberOfRequiredOutputs (unsigned int _arg)
virtual const unsigned int &	GetNumberOfRequiredOutputs ()
void	SetNumberOfOutputs (unsigned int num)
virtual void	GenerateOutputRequestedRegion (DataObject *output)
virtual void	GenerateOutputInformation ()
virtual void	PropagateResetPipeline ()
virtual void	ReleaseInputs ()
virtual void	CacheInputReleaseDataFlags ()
virtual void	RestoreInputReleaseDataFlags ()
bool	PrintObservers (std::ostream &os, Indent indent) const
virtual void	PrintHeader (std::ostream &os, Indent indent) const
virtual void	PrintTrailer (std::ostream &os, Indent indent) const
Static Protected Member Functions
static ITK_THREAD_RETURN_TYPE	ThreaderCallback (void *arg)
Protected Attributes
bool	m_Updating
TimeStamp	m_OutputInformationMTime
InternalReferenceCountType	m_ReferenceCount
SimpleFastMutexLock	m_ReferenceCountLock
Private Member Functions
	ImageToImageFilter (const Self &)
void	operator= (const Self &)

itk::ImageToImageFilter< TInputImage, TOutputImage > Class Template Reference [Image Filters]

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Types

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Private Member Functions

Detailed Description

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

Member Typedef Documentation

Member Function Documentation

Member Data Documentation

itk::ImageToImageFilter< TInputImage, TOutputImage > Class Template Reference
[Image Filters]

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