#include <itkPNGImageIO.h>

Detailed Description

ImageIO object for reading and writing PNG images.

Compression is support with only the default compressor. The compression level option is supported in the range 0-9.

Definition at line 39 of file itkPNGImageIO.h.

Inheritance diagram for itk::PNGImageIO:

Collaboration diagram for itk::PNGImageIO:

Public Types
using	PaletteType = std::vector< RGBPixelType >

using	Pointer = SmartPointer< Self >

using	RGBPixelType = RGBPixel< unsigned char >

using	Self = PNGImageIO

using	Superclass = ImageIOBase

Public Types inherited from itk::ImageIOBase
using	ArrayOfExtensionsType = std::vector< std::string >

using	BufferSizeType = itk::OffsetValueType

using	ConstPointer = SmartPointer< const Self >

using	IndexValueType = itk::IndexValueType

using	IOByteOrderEnum = itk::IOByteOrderEnum

using	IOComponentEnum = itk::IOComponentEnum

using	IOFileEnum = itk::IOFileEnum

using	Pointer = SmartPointer< Self >

using	Self = ImageIOBase

using	SizeType = itk::intmax_t

using	SizeValueType = itk::SizeValueType

using	Superclass = LightProcessObject

Public Types inherited from itk::LightProcessObject
using	ConstPointer = SmartPointer< const Self >

using	Pointer = SmartPointer< Self >

using	Self = LightProcessObject

using	Superclass = Object

Public Types inherited from itk::Object
using	ConstPointer = SmartPointer< const Self >

using	Pointer = SmartPointer< Self >

using	Self = Object

using	Superclass = LightObject

Public Types inherited from itk::LightObject
using	ConstPointer = SmartPointer< const Self >

using	Pointer = SmartPointer< Self >

using	Self = LightObject

Public Member Functions
bool	CanReadFile (const char *) override

bool	CanWriteFile (const char *) override

virtual const PaletteType &	GetColorPalette () const

const char *	GetNameOfClass () const override

void	Read (void *buffer) override

void	ReadImageInformation () override

virtual void	ReadVolume (void *buffer)

void	Write (const void *buffer) override

void	WriteImageInformation () override


void	SetColorPalette (const PaletteType _arg)

Public Member Functions inherited from itk::ImageIOBase
virtual bool	CanStreamRead ()

virtual bool	CanStreamWrite ()

virtual ImageIORegion	GenerateStreamableReadRegionFromRequestedRegion (const ImageIORegion &requested) const

virtual unsigned int	GetActualNumberOfSplitsForWriting (unsigned int numberOfRequestedSplits, const ImageIORegion &pasteRegion, const ImageIORegion &largestPossibleRegion)

std::string	GetByteOrderAsString (IOByteOrderEnum) const

virtual unsigned int	GetComponentSize () const

virtual IOComponentEnum	GetComponentType () const

virtual const std::type_info &	GetComponentTypeInfo () const

virtual int	GetCompressionLevel () const

virtual const std::string &	GetCompressor () const

virtual std::vector< double >	GetDefaultDirection (unsigned int k) const

virtual SizeValueType	GetDimensions (unsigned int i) const

virtual std::vector< double >	GetDirection (unsigned int i) const

std::string	GetFileTypeAsString (IOFileEnum) const

SizeType	GetImageSizeInBytes () const

SizeType	GetImageSizeInComponents () const

SizeType	GetImageSizeInPixels () const

virtual bool	GetIsReadAsScalarPlusPalette () const

virtual unsigned int	GetNumberOfDimensions () const

virtual double	GetOrigin (unsigned int i) const

virtual SizeType	GetPixelStride () const

virtual double	GetSpacing (unsigned int i) const

virtual ImageIORegion	GetSplitRegionForWriting (unsigned int ithPiece, unsigned int numberOfActualSplits, const ImageIORegion &pasteRegion, const ImageIORegion &largestPossibleRegion)

const ArrayOfExtensionsType &	GetSupportedReadExtensions () const

const ArrayOfExtensionsType &	GetSupportedWriteExtensions () const

void	SetByteOrderToLittleEndian ()

virtual void	SetComponentType (const IOComponentEnum _arg)

virtual void	SetCompressionLevel (int _arg)

virtual void	SetCompressor (std::string _c)

virtual void	SetDirection (unsigned int i, const std::vector< double > &direction)

virtual void	SetDirection (unsigned int i, const vnl_vector< double > &direction)

void	SetFileTypeToBinary ()

void	SetNumberOfDimensions (unsigned int)

virtual void	SetOrigin (unsigned int i, double origin)

virtual void	SetSpacing (unsigned int i, double spacing)

template<typename TPixel >
void	SetTypeInfo (const TPixel *)

virtual bool	SupportsDimension (unsigned long dim)

virtual void	SetFileName (const char *_arg)

virtual const char *	GetFileName () const

virtual void	SetDimensions (unsigned int i, SizeValueType dim)

virtual void	SetIORegion (ImageIORegion _arg)

virtual const ImageIORegion &	GetIORegion () const

virtual void	SetPixelType (const itk::CommonEnums::IOPixel _arg)

virtual itk::CommonEnums::IOPixel	GetPixelType () const

virtual void	SetNumberOfComponents (unsigned int _arg)

virtual const unsigned int &	GetNumberOfComponents () const

virtual void	SetUseCompression (bool _arg)

virtual bool	GetUseCompression () const

virtual void	UseCompressionOn ()

virtual void	SetUseStreamedReading (bool _arg)

virtual bool	GetUseStreamedReading () const

virtual void	UseStreamedReadingOn ()

virtual void	SetUseStreamedWriting (bool _arg)

virtual bool	GetUseStreamedWriting () const

virtual void	UseStreamedWritingOn ()

virtual void	SetExpandRGBPalette (bool _arg)

virtual bool	GetExpandRGBPalette () const

virtual void	ExpandRGBPaletteOn ()

virtual void	SetWritePalette (bool _arg)

virtual bool	GetWritePalette () const

virtual void	WritePaletteOn ()

virtual void	SetFileType (const IOFileEnum _arg)

virtual IOFileEnum	GetFileType () const

void	SetFileTypeToASCII ()

virtual void	SetByteOrder (const IOByteOrderEnum _arg)

virtual IOByteOrderEnum	GetByteOrder () const

void	SetByteOrderToBigEndian ()

template<typename TPixel >
void	SetPixelTypeInfo (const TPixel *)

template<typename TPixel >
void	SetPixelTypeInfo (const RGBPixel< TPixel > *)

template<typename TPixel >
void	SetPixelTypeInfo (const RGBAPixel< TPixel > *)

template<unsigned int VLength>
void	SetPixelTypeInfo (const Offset< VLength > *)

template<typename TPixel , unsigned int VLength>
void	SetPixelTypeInfo (const Vector< TPixel, VLength > *)

template<typename TCoordinate , unsigned int VPointDimension>
void	SetPixelTypeInfo (const Point< TCoordinate, VPointDimension > *)

template<typename TPixel , unsigned int VLength>
void	SetPixelTypeInfo (const CovariantVector< TPixel, VLength > *)

template<typename TPixel , unsigned int VLength>
void	SetPixelTypeInfo (const SymmetricSecondRankTensor< TPixel, VLength > *)

template<typename TPixel >
void	SetPixelTypeInfo (const DiffusionTensor3D< TPixel > *)

template<typename TPixel >
void	SetPixelTypeInfo (const std::complex< TPixel > *)

template<typename TPixel , unsigned int VLength>
void	SetPixelTypeInfo (const FixedArray< TPixel, VLength > *)

template<typename TPixel >
void	SetPixelTypeInfo (const VariableLengthVector< TPixel > *)

template<typename TValue >
void	SetPixelTypeInfo (const Array< TValue > *)

template<typename TPixel , unsigned int VLength>
void	SetPixelTypeInfo (const Matrix< TPixel, VLength, VLength > *)

template<typename TValue >
void	SetPixelTypeInfo (const VariableSizeMatrix< TValue > *)

Public Member Functions inherited from itk::LightProcessObject
virtual void	AbortGenerateDataOn ()

virtual const bool &	GetAbortGenerateData () const

virtual void	SetAbortGenerateData (bool _arg)

virtual void	UpdateOutputData ()

void	UpdateProgress (float amount)

virtual void	SetProgress (float _arg)

virtual const float &	GetProgress () const

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *cmd) const

unsigned long	AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) const

LightObject::Pointer	CreateAnother () const override

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	GetMTime () const

virtual const TimeStamp &	GetTimeStamp () const

bool	HasObserver (const EventObject &event) const

void	InvokeEvent (const EventObject &)

void	InvokeEvent (const EventObject &) const

virtual void	Modified () const

void	Register () const override

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag) const

void	SetDebug (bool debugFlag) const

void	SetReferenceCount (int) override

void	UnRegister () const noexcept override

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

void	SetMetaDataDictionary (MetaDataDictionary &&rrhs)

virtual void	SetObjectName (std::string _arg)

virtual const std::string &	GetObjectName () const

Public Member Functions inherited from itk::LightObject
Pointer	Clone () const

virtual void	Delete ()

virtual int	GetReferenceCount () const

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

Static Public Member Functions
static Pointer	New ()

Static Public Member Functions inherited from itk::ImageIOBase
static std::string	GetComponentTypeAsString (IOComponentEnum)

static IOComponentEnum	GetComponentTypeFromString (const std::string &typeString)

static std::string	GetPixelTypeAsString (IOPixelEnum)

static IOPixelEnum	GetPixelTypeFromString (const std::string &pixelString)

Static Public Member Functions inherited from itk::LightProcessObject
static Pointer	New ()

Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool val)

Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Protected Member Functions
	PNGImageIO ()

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

void	WriteSlice (const std::string &fileName, const void *const buffer)

	~PNGImageIO () override

Protected Member Functions inherited from itk::ImageIOBase
void	AddSupportedReadExtension (const char *extension)

void	AddSupportedWriteExtension (const char *extension)

void	ComputeStrides ()

virtual unsigned int	GetActualNumberOfSplitsForWritingCanStreamWrite (unsigned int numberOfRequestedSplits, const ImageIORegion &pasteRegion) const

SizeType	GetComponentStride () const

virtual const ImageRegionSplitterBase *	GetImageRegionSplitter () const

virtual unsigned int	GetPixelSize () const

SizeType	GetRowStride () const

SizeType	GetSliceStride () const

virtual ImageIORegion	GetSplitRegionForWritingCanStreamWrite (unsigned int ithPiece, unsigned int numberOfActualSplits, const ImageIORegion &pasteRegion) const

	ImageIOBase ()

virtual void	InternalSetCompressor (const std::string &_compressor)

virtual void	OpenFileForReading (std::ifstream &inputStream, const std::string &filename, bool ascii=false)

virtual void	OpenFileForWriting (std::ofstream &outputStream, const std::string &filename, bool truncate=true, bool ascii=false)

virtual void	ReadBufferAsASCII (std::istream &is, void *buffer, IOComponentEnum ctype, SizeType numComp)

bool	ReadBufferAsBinary (std::istream &is, void *buffer, SizeType num)

virtual void	Reset (const bool freeDynamic=true)

void	Resize (const unsigned int numDimensions, const unsigned int *dimensions)

void	SetSupportedReadExtensions (const ArrayOfExtensionsType &)

void	SetSupportedWriteExtensions (const ArrayOfExtensionsType &)

virtual void	WriteBufferAsASCII (std::ostream &os, const void *buffer, IOComponentEnum ctype, SizeType numComp)

	~ImageIOBase () override

virtual bool	HasSupportedReadExtension (const char *fileName, bool ignoreCase=true)

virtual bool	HasSupportedWriteExtension (const char *fileName, bool ignoreCase=true)

virtual void	SetMaximumCompressionLevel (int)

virtual int	GetMaximumCompressionLevel () const

Protected Member Functions inherited from itk::LightProcessObject
virtual void	GenerateData ()

	LightProcessObject ()

	~LightProcessObject () override

Protected Member Functions inherited from itk::Object
	Object ()

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

virtual void	SetTimeStamp (const TimeStamp &timeStamp)

	~Object () override

Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const

	LightObject ()

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

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

virtual	~LightObject ()

Protected Attributes
PaletteType	m_ColorPalette {}

Protected Attributes inherited from itk::ImageIOBase
IOByteOrderEnum	m_ByteOrder { IOByteOrderEnum::OrderNotApplicable }

IOComponentEnum	m_ComponentType { IOComponentEnum::UNKNOWNCOMPONENTTYPE }

int	m_CompressionLevel { 30 }

std::string	m_Compressor { "uninitialized" }

std::vector< SizeValueType >	m_Dimensions {}

std::vector< std::vector< double > >	m_Direction {}

bool	m_ExpandRGBPalette {}

std::string	m_FileName {}

IOFileEnum	m_FileType { IOFileEnum::TypeNotApplicable }

bool	m_Initialized {}

ImageIORegion	m_IORegion {}

bool	m_IsReadAsScalarPlusPalette {}

int	m_MaximumCompressionLevel { 100 }

unsigned int	m_NumberOfComponents {}

unsigned int	m_NumberOfDimensions { 0 }

std::vector< double >	m_Origin {}

IOPixelEnum	m_PixelType { IOPixelEnum::SCALAR }

std::vector< double >	m_Spacing {}

std::vector< SizeType >	m_Strides {}

bool	m_UseCompression { false }

bool	m_UseStreamedReading {}

bool	m_UseStreamedWriting {}

bool	m_WritePalette {}

Protected Attributes inherited from itk::LightObject
std::atomic< int >	m_ReferenceCount {}

Member Typedef Documentation

◆ PaletteType

using itk::PNGImageIO::PaletteType = std::vector<RGBPixelType>

Definition at line 50 of file itkPNGImageIO.h.

◆ Pointer

using itk::PNGImageIO::Pointer = SmartPointer<Self>

Definition at line 47 of file itkPNGImageIO.h.

◆ RGBPixelType

using itk::PNGImageIO::RGBPixelType = RGBPixel<unsigned char>

Definition at line 49 of file itkPNGImageIO.h.

◆ Self

using itk::PNGImageIO::Self = PNGImageIO

Standard class type aliases.

Definition at line 45 of file itkPNGImageIO.h.

◆ Superclass

using itk::PNGImageIO::Superclass = ImageIOBase

Definition at line 46 of file itkPNGImageIO.h.

Constructor & Destructor Documentation

◆ PNGImageIO()

itk::PNGImageIO::PNGImageIO ( )

protected

◆ ~PNGImageIO()

itk::PNGImageIO::~PNGImageIO ( )

overrideprotected

Member Function Documentation

◆ CanReadFile()

bool itk::PNGImageIO::CanReadFile ( const char * )

overridevirtual

Determine the file type. Returns true if this ImageIO can read the file specified.

Implements itk::ImageIOBase.

◆ CanWriteFile()

bool itk::PNGImageIO::CanWriteFile ( const char * )

overridevirtual

Determine the file type. Returns true if this ImageIO can write the file specified.

Implements itk::ImageIOBase.

◆ GetColorPalette()

virtual const PaletteType& itk::PNGImageIO::GetColorPalette ( ) const

virtual

Get a const ref to the palette of the image. In the case of non palette image or ExpandRGBPalette set to true, a vector of size 0 is returned

◆ GetNameOfClass()

const char* itk::PNGImageIO::GetNameOfClass ( ) const

overridevirtual

See also: LightObject::GetNameOfClass()

Reimplemented from itk::ImageIOBase.

◆ New()

static Pointer itk::PNGImageIO::New ( )

static

Method for creation through the object factory.

Examples: Examples/IO/ImageSeriesReadWrite.cxx, Examples/IO/ImageSeriesReadWrite2.cxx, and Examples/IO/RGBImageSeriesReadWrite.cxx.

◆ PrintSelf()

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

overrideprotectedvirtual

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from itk::ImageIOBase.

◆ Read()

void itk::PNGImageIO::Read ( void * buffer )

overridevirtual

Reads the data from disk into the memory buffer provided.

Implements itk::ImageIOBase.

◆ ReadImageInformation()

void itk::PNGImageIO::ReadImageInformation ( )

overridevirtual

Set the spacing and dimension information for the set filename.

Implements itk::ImageIOBase.

◆ ReadVolume()

virtual void itk::PNGImageIO::ReadVolume ( void * buffer )

virtual

Reads 3D data from multiple files assuming one slice per file.

◆ SetColorPalette()

void itk::PNGImageIO::SetColorPalette ( const PaletteType _arg )

inline

Set the palette of the image.

Definition at line 65 of file itkPNGImageIO.h.

◆ Write()

void itk::PNGImageIO::Write ( const void * buffer )

overridevirtual

Writes the data to disk from the memory buffer provided. Make sure that the IORegion has been set properly.

Implements itk::ImageIOBase.

◆ WriteImageInformation()

void itk::PNGImageIO::WriteImageInformation ( )

overridevirtual

Writes the spacing and dimensions of the image. Assumes SetFileName has been called with a valid file name.

Implements itk::ImageIOBase.

◆ WriteSlice()

void itk::PNGImageIO::WriteSlice	(	const std::string &	fileName,
		const void *const	buffer
	)

protected

Member Data Documentation

◆ m_ColorPalette

PaletteType itk::PNGImageIO::m_ColorPalette {}

protected

Definition at line 121 of file itkPNGImageIO.h.

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

itkPNGImageIO.h

Detailed Description

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Member Typedef Documentation

◆ PaletteType

◆ Pointer

◆ RGBPixelType

◆ Self

◆ Superclass

Constructor & Destructor Documentation

◆ PNGImageIO()

◆ ~PNGImageIO()

Member Function Documentation

◆ CanReadFile()

◆ CanWriteFile()

◆ GetColorPalette()

◆ GetNameOfClass()

◆ New()

◆ PrintSelf()

◆ Read()

◆ ReadImageInformation()

◆ ReadVolume()

◆ SetColorPalette()

◆ Write()

◆ WriteImageInformation()

◆ WriteSlice()

Member Data Documentation

◆ m_ColorPalette