Foveator Class Reference

An abstract class for space-variant image processing. More...

#include <Foveator/Foveator.H>

Inheritance diagram for Foveator:

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Collaboration diagram for Foveator:

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List of all members.

Public Member Functions
	Foveator (const Image< PixRGB< byte > > &img)
	Constructor.
virtual	~Foveator ()
	Destructor.
Point2D< int >	getOrigin (void) const
	Returns the current center of foveation.
int	getWidth (void) const
	Returns width of image being foveated.
int	getHeight (void) const
	Returns height of image being foveated.
void	changeImage (const Image< PixRGB< byte > > &img)
	Change the image to be foveated.
virtual bool	setOrigin (Point2D< int > pt)
	Set origin point (center of foveation).
virtual bool	setOrigin (int x, int y)
	Set origin point (center of foveation).
virtual Image< PixRGB< byte > >	foveate (void)=0
	Foveation function, returns foveated image.
Protected Attributes
Image< PixRGB< byte > >	original
	image to be foveated
int	width
	width of original image
int	height
	height of original image
Point2D< int >	origin
	center of foveation

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Detailed Description

An abstract class for space-variant image processing.

Space-variant image processing concentrates image quality and resolution in areas of interest. Human vision has high resolution at the center, but it decreases as we move further out into the periphery. Through the process of foveation, we attempt to simulate this type of vision.

Classes used for foveation should inherit this as a base. The foveation operation is performed through pure virtual function foveate(). Different foveation techniques and algorithms are implemented in BlurFoveator, PyrFoveator, and LPTFoveator.

Definition at line 25 of file Foveator.H.

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Constructor & Destructor Documentation

Foveator::Foveator

(

const Image< PixRGB< byte > > &

img

)

Constructor.

Create a Foveator object to operate on image argument

Parameters:

img

image to be foveated

Definition at line 14 of file Foveator.C.

Foveator::~Foveator

(

)

[virtual]

Destructor.

Definition at line 22 of file Foveator.C.

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Member Function Documentation

void Foveator::changeImage

(

const Image< PixRGB< byte > > &

img

)

Change the image to be foveated.

Change the image to be foveated to another one of the same size

Parameters:

img

new image to be used, must have same dimensions as original

Definition at line 49 of file Foveator.C.

References height, original, and width.

virtual Image< PixRGB< byte> > Foveator::foveate

(

void

)

[pure virtual]

Foveation function, returns foveated image.

Implemented in BlurFoveator, LPTFoveator, and PyrFoveator.

int Foveator::getHeight

(

void

)

const

Returns height of image being foveated.

Definition at line 41 of file Foveator.C.

References height.

Point2D< int > Foveator::getOrigin

(

void

)

const

Returns the current center of foveation.

Definition at line 29 of file Foveator.C.

References origin.

int Foveator::getWidth

(

void

)

const

Returns width of image being foveated.

Definition at line 35 of file Foveator.C.

References width.

bool Foveator::setOrigin	(	int	x,
		int	y
	)			[virtual]

Set origin point (center of foveation).

Set origin point to two int arguments, returns true if successful

Parameters:

	x	horizontal coordinate of origin
	y	vertical coordinate of origin

Reimplemented in LPTFoveator.

Definition at line 80 of file Foveator.C.

References Image< T >::coordsOk(), Point2D< T >::i, origin, and original.

bool Foveator::setOrigin

(

Point2D< int >

pt

)

[virtual]

Set origin point (center of foveation).

Set origin point to Point2D<int> argument, returns true if successful

Parameters:

pt

center of foveation

Reimplemented in LPTFoveator.

Definition at line 65 of file Foveator.C.

References Image< T >::coordsOk(), origin, and original.

Referenced by LPTFoveator::setOrigin().

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Member Data Documentation

int Foveator::height [protected]

height of original image

Definition at line 30 of file Foveator.H.

Referenced by BlurFoveator::BlurFoveator(), changeImage(), PyrFoveator::foveate(), BlurFoveator::foveate(), getHeight(), LPTFoveator::invLPT(), LPTFoveator::LPTFoveator(), and LPTFoveator::setOrigin().

Point2D<int> Foveator::origin [protected]

center of foveation

Definition at line 31 of file Foveator.H.

Referenced by BlurFoveator::foveate(), PyrFoveator::foveate(), getOrigin(), LPTFoveator::setOrigin(), and setOrigin().

Image< PixRGB< byte > > Foveator::original [protected]

image to be foveated

Definition at line 28 of file Foveator.H.

Referenced by changeImage(), BlurFoveator::foveate(), PyrFoveator::foveate(), LPTFoveator::getLPT(), and setOrigin().

int Foveator::width [protected]

width of original image

Definition at line 29 of file Foveator.H.

Referenced by BlurFoveator::BlurFoveator(), changeImage(), PyrFoveator::foveate(), BlurFoveator::foveate(), getWidth(), LPTFoveator::invLPT(), LPTFoveator::LPTFoveator(), and LPTFoveator::setOrigin().

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

• src/Foveator/Foveator.H
• src/Foveator/Foveator.C