Image Adaptors
[Data Processing Objects]

Compounds
class	AcosImageAdaptor
	Presents an image as being composed of the acos() of its pixels. More...
class	AcosPixelAccessor
	Give access to the acos() function of a value. More...
class	AddImageAdaptor
	Presents an image as being composed of the log() of its pixels. More...
class	AddPixelAccessor
	Simulates the effect of adding a constant value to all pixels. More...
class	AsinImageAdaptor
	Presents an image as being composed of the asin() of its pixels. More...
class	AsinPixelAccessor
	Give access to the asin() function of a value. More...
class	AtanImageAdaptor
	Presents an image as being composed of the atan() of its pixels. More...
class	AtanPixelAccessor
	Give access to the atan() function of a value. More...
class	BluePixelAccessor
	Give access to the Blue component of a RGBPixel type. More...
class	CosImageAdaptor
	Presents an image as being composed of the cos() of its pixels. More...
class	CosPixelAccessor
	Give access to the cos() function of a value. More...
class	DefaultPixelAccessor
	Give access to partial aspects a type. More...
class	ExpImageAdaptor
	Presents an image as being composed of the exp() of its pixels. More...
class	ExpNegativeImageAdaptor
	Presents an image as being composed of the exp() of its pixels. More...
class	ExpNegativePixelAccessor
	Give access to the exp() function of a value. More...
class	ExpPixelAccessor
	Give access to the exp() function of a value. More...
class	GreenPixelAccessor
	Give access to the Green component of a RGBPixel type. More...
class	ImageAdaptor
	Give access to partial aspects of voxels from an Image. More...
class	Log10ImageAdaptor
	Presents an image as being composed of the log10() of its pixels. More...
class	Log10PixelAccessor
	Give access to the log10() function of a value. More...
class	LogImageAdaptor
	Presents an image as being composed of the log() of its pixels. More...
class	LogPixelAccessor
	Give access to the log() function of a value. More...
class	NthElementImageAdaptor
	Presents an image as being composed of the N-th element of its pixels. More...
class	NthElementPixelAccessor
	Give access to the N-th of a Container type. More...
class	PixelAccessor
	Give access to partial aspects of a type. More...
class	RedPixelAccessor
	Give access to the red component of a RGBPixel type. More...
class	SinImageAdaptor
	Presents an image as being composed of the sin() of its pixels. More...
class	SinPixelAccessor
	Give access to the sin() function of a value. More...
class	SqrtImageAdaptor
	Presents an image as being composed of the sqrt() of its pixels. More...
class	SqrtPixelAccessor
	Give access to the sqrt() function of a value. More...
class	TanImageAdaptor
	Presents an image as being composed of the tan() of its pixels. More...
class	TanPixelAccessor
	Give access to the tan() function of a value. More...

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Detailed Description

Image Adaptors are an implementation of the Adaptor Design Pattern. They are designed to present an image of a particular type as being an image of a different type. Adaptors perform simple operations on pixel values for which is not easy to justify the use of an image filter.

One of the principal tasks of ImageAdaptors is to perform casting.

For example: you have an image whose pixels are of type unsigned char and you need to feed this image in a process that expects pixels of type double. You have the option of using and ImageFilter (see ImageFiltersPage) that convert the input unsigned char image into another of pixel type double. However this filter will allocate memory for this second image and will need to be executed. Image Adaptors allow to simulate that you have made the conversion but will avoid the overhead in memory. There is however a penalty in performance.

The mechanism used by image adaptors is to provide a simple function that will be used by ImageIterator (see Image Iterators) to convert the value of a pixel, in a pixel-by-pixel basis.

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