Detailed Description

template<typename TComponent = unsigned short>
class itk::RGBAPixel< TComponent >

Represent Red, Green, Blue and Alpha components for color images.

This class is templated over the representation used for each component.

The following syntax for assigning an index is allowed/suggested:

*    RGBAPixel<float> pixel; pixel = 1.0f, 0.0f, .5f, .8;
*    RGBAPixel<char> pixelArray[2];
*    pixelArray[0] = 255, 255, 255, 230;
*    pixelArray[1] = 255, 255, 244, 255;
* 

Since RGBAPixel is a subclass of Array, you can access its components as: pixel[0], pixel[1], pixel[2], pixel[3]

Wiki Examples:

Examples:: WikiExamples/Images/ConvertPixelBuffer.cxx, and WikiExamples/SimpleOperations/Transparency.cxx.

Definition at line 59 of file itkRGBAPixel.h.

Public Types
typedef FixedArray< TComponent, 4 >	BaseArray

typedef TComponent	ComponentType

typedef NumericTraits < ComponentType >::RealType	LuminanceType

typedef RGBAPixel	Self

typedef FixedArray< TComponent, 4 >	Superclass

Public Types inherited from itk::FixedArray< TComponent, 4 >
typedef ValueType	CArray [VLength]

typedef const ValueType *	const_pointer

typedef const ValueType &	const_reference

typedef const ValueType *	ConstIterator

typedef ValueType *	Iterator

typedef ValueType *	pointer

typedef ValueType &	reference

typedef unsigned int	SizeType

typedef TComponent	ValueType

Public Member Functions
const ComponentType &	GetAlpha (void) const

const ComponentType &	GetBlue (void) const

const ComponentType &	GetGreen (void) const

LuminanceType	GetLuminance () const

ComponentType	GetNthComponent (int c) const

const ComponentType &	GetRed (void) const

ComponentType	GetScalarValue () const

Self	operator* (const ComponentType &f) const

Self	operator+ (const Self &vec) const

const Self &	operator+= (const Self &vec)

Self	operator- (const Self &vec) const

const Self &	operator-= (const Self &vec)

RGBAPixel &	operator= (const Self &r)

RGBAPixel &	operator= (const ComponentType r[4])

bool	operator== (const Self &vec) const

void	SetAlpha (ComponentType alpha)

void	SetBlue (ComponentType blue)

void	SetGreen (ComponentType green)

void	SetNthComponent (int c, const ComponentType &v)

void	SetRed (ComponentType red)


	RGBAPixel ()

	RGBAPixel (const ComponentType &r)


template<typename TRGBAPixelValueType >
	RGBAPixel (const RGBAPixel< TRGBAPixelValueType > &r)

	RGBAPixel (const ComponentType r[4])


void	Set (ComponentType red, ComponentType green, ComponentType blue, ComponentType alpha)

Public Member Functions inherited from itk::FixedArray< TComponent, 4 >
Iterator	Begin ()

ConstIterator	Begin () const

Iterator	End ()

ConstIterator	End () const

void	Fill (const ValueType &)

	FixedArray (const TScalarValue *r)

ValueType *	GetDataPointer ()

const ValueType *	GetDataPointer () const

bool	operator!= (const FixedArray &r) const

FixedArray &	operator= (const ValueType r[VLength])

bool	operator== (const FixedArray &r) const

ReverseIterator	rBegin ()

ConstReverseIterator	rBegin () const

ReverseIterator	rEnd ()

ConstReverseIterator	rEnd () const

SizeType	Size () const

	FixedArray ()

	FixedArray (const ValueType r[VLength])

	FixedArray (const ValueType &r)

	FixedArray (const FixedArray< TFixedArrayValueType, VLength > &r)

FixedArray &	operator= (const FixedArray< TFixedArrayValueType, VLength > &r)

reference	operator[] (short index)

const_reference	operator[] (short index) const

reference	operator[] (unsigned short index)

const_reference	operator[] (unsigned short index) const

reference	operator[] (int index)

const_reference	operator[] (int index) const

reference	operator[] (unsigned int index)

const_reference	operator[] (unsigned int index) const

reference	operator[] (long index)

const_reference	operator[] (long index) const

reference	operator[] (unsigned long index)

const_reference	operator[] (unsigned long index) const

reference	operator[] (long long index)

const_reference	operator[] (long long index) const

reference	operator[] (unsigned long long index)

const_reference	operator[] (unsigned long long index) const

void	SetElement (unsigned short index, const_reference value)

const_reference	GetElement (unsigned short index) const

Static Public Member Functions
static unsigned int	GetNumberOfComponents ()

Static Public Member Functions inherited from itk::FixedArray< TComponent, 4 >
static FixedArray	Filled (const ValueType &)

Static Public Attributes
static const unsigned int	Dimension = 4

static const unsigned int	Length = 4

Static Public Attributes inherited from itk::FixedArray< TComponent, 4 >
static const unsigned int	Dimension

static const unsigned int	Length