lti::opponentColor Class Reference

This functor generates an "opponent color" channel from the given two channels, one representing the center, the other representing the surround. More...

#include <ltiOpponentColor.h>

Inheritance diagram for lti::opponentColor:

[legend]

Collaboration diagram for lti::opponentColor:

[legend]

List of all members.

Classes
class	parameters
	the parameters for the class opponentColor More...
Public Member Functions
	opponentColor ()
	opponentColor (const opponentColor &other)
virtual	~opponentColor ()
virtual const char *	getTypeName () const
bool	apply (const lti::channel &centerSrc, const lti::channel &surroundSrc, lti::channel &dest) const
opponentColor &	copy (const opponentColor &other)
virtual functor *	clone () const
const parameters &	getParameters () const

---

Detailed Description

This functor generates an "opponent color" channel from the given two channels, one representing the center, the other representing the surround.

The idea is to inhibit the response of a center region in a receptive field with the responce of a surround region.

                       ________
                      /        \
                     /   ____   \
                    |   /    \   |
                    |  |Center|  |
                    |   \____/   |
                     \ Surround /
                      \________/

Usually, the surround pyramid-level is higher (lower resolution) than the center, to simulate this consideration of a larger region in the receptive field.

Common used opponent color channels (Center-Surround) are the Red-Green, Green-Red, Blue-Yellow, Yellow-Blue. But of course other combinations can be employed (-Red+Green, etc.).

---

Constructor & Destructor Documentation

lti::opponentColor::opponentColor

(

)

default constructor

lti::opponentColor::opponentColor

(

const opponentColor &

other

)

copy constructor

Parameters:

other

the object to be copied

virtual lti::opponentColor::~opponentColor

(

)

[virtual]

destructor

---

Member Function Documentation

bool lti::opponentColor::apply	(	const lti::channel &	centerSrc,
		const lti::channel &	surroundSrc,
		lti::channel &	dest
	)			const

Apply.

Parameters:

	centerSrc	channel with the source data.
	surroundSrc	channel with the source data.
	dest	channel where the result will be left.

Returns:

true if apply successful or false otherwise.

virtual functor* lti::opponentColor::clone

(

)

const [virtual]

returns a pointer to a clone of this functor.

Implements lti::functor.

opponentColor& lti::opponentColor::copy

(

const opponentColor &

other

)

copy data of "other" functor.

Parameters:

other

the functor to be copied

Returns:

a reference to this functor object

Reimplemented from lti::functor.

const parameters& lti::opponentColor::getParameters

(

)

const

returns used parameters

Reimplemented from lti::transform.

virtual const char* lti::opponentColor::getTypeName

(

)

const [virtual]

returns the name of this type ("opponentColor")

Reimplemented from lti::transform.

---

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

• ltiOpponentColor.h