FlickerChannel Class Reference

#include <Channels/FlickerChannel.H>

Inheritance diagram for FlickerChannel:

[legend]Collaboration diagram for FlickerChannel:

[legend]List of all members.

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Detailed Description

A temporal flicker channel.

This channel just keeps a memory trace of the previous frame and then does a basic center-surround processing on the difference between current and memorized input. The time constant determines how the memorized input should be updated when a new input arrives.

Definition at line 51 of file FlickerChannel.H.

Public Member Functions
	FlickerChannel (OptionManager &mgr)
	Construct with standard specs.
virtual	~FlickerChannel ()
	Destructor.
virtual void	reset1 ()
	Reset FlickerChannel.
Protected Member Functions
virtual void	doInput (const InputFrame &inframe)
	FlickerChannel requires only luminance input.
Protected Attributes
NModelParam< SimTime >	itsTimeConst

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Constructor & Destructor Documentation

FlickerChannel::FlickerChannel (  OptionManager &  mgr  )

Construct with standard specs. Definition at line 51 of file FlickerChannel.C. References GVX_TRACE, SingleChannel::itsNormalizeOutput, SingleChannel::itsTakeAbs, and NModelParam< T >::setVal().

FlickerChannel::~FlickerChannel (   )  [virtual]

Destructor. Definition at line 64 of file FlickerChannel.C. References GVX_TRACE.

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Member Function Documentation

void FlickerChannel::doInput (  const InputFrame &  inframe  )  [protected, virtual]

FlickerChannel requires only luminance input. Reimplemented from SingleChannel. Definition at line 70 of file FlickerChannel.C. References absDiff(), ASSERT, InputFrame::clipMask(), SingleChannel::doInput(), InputFrame::fromGrayFloat(), NModelParam< T >::getVal(), InputFrame::grayFloat(), GVX_TRACE, Image< T >::initialized(), itsTimeConst, InputFrame::pyrCache(), SimTime::secs(), and InputFrame::time().

void FlickerChannel::reset1 (   )  [virtual]

Reset FlickerChannel. See the base function in ModelComponent.H for info. Reimplemented from SingleChannel. Definition at line 110 of file FlickerChannel.C. References Image< T >::freeMem(), GVX_TRACE, and SingleChannel::reset1().

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Member Data Documentation

NModelParam<SimTime> FlickerChannel::itsTimeConst [protected]

Time constant of the channel, in seconds. This is used to determine how to update our memory of the previous frame as a new frame arrives. If the previous frame is more than a time constant older than the new one, it will be replaced by the new one for the next step of processing; otherwise a mix between both will be used, depending on the difference between old and new times. Definition at line 75 of file FlickerChannel.H. Referenced by doInput().

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

• src/Channels/FlickerChannel.H
• src/Channels/FlickerChannel.C

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