NewWave::FrequencyBand Class Reference

A frequency band contains all the wavelet coefficients of the same angular scale. More...

#include <FrequencyBand.hh>

List of all members.

Public Member Functions
	FrequencyBand (int yLevel, int phiLevel)
const WaveletCoefficients &	coefficients () const
	Return the coefficients in this frequency band.
double	rms () const
	Return the rms of the coefficients in this frequency band.
void	addCoefficient (const WaveletCoefficient &coeff)
	Add a wavelet coefficient to this band.
int	yLevel () const
	The y-level of this frequency band.
int	phiLevel () const
	The -level of this frequency band.

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Detailed Description

A frequency band contains all the wavelet coefficients of the same angular scale.

For each pair of wavelet levels (frequencies) there is a fixed number of wavelet coefficients that cover the full space. A frequency band contains the full set of coefficients for its levels, each coefficient having an identical angular scale, but covering a different location in

Definition at line 17 of file FrequencyBand.hh.

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Constructor & Destructor Documentation

NewWave::FrequencyBand::FrequencyBand	(	int	yLevel,
		int	phiLevel
	)

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Member Function Documentation

void NewWave::FrequencyBand::addCoefficient

(

const WaveletCoefficient &

coeff

)

Add a wavelet coefficient to this band.

Throw an InvalidFrequencyBand if the frequency band is already fully populated, or a WrongCoefficient if the coefficient to be added does not match the levels of the frequency band

const WaveletCoefficients& NewWave::FrequencyBand::coefficients

(

)

const

Return the coefficients in this frequency band.

Will throw an InvalidFrequencyBand if the set of coefficients is not complete

int NewWave::FrequencyBand::phiLevel

(

)

const

The -level of this frequency band.

double NewWave::FrequencyBand::rms

(

)

const

Return the rms of the coefficients in this frequency band.

Since a wavelet coefficient represents the deviation from the mean activity in its location, the average of all coefficients within a frequency band is zero by definition. The RMS therefore provides a measure of the amount of activity in a frequency band and is conceptually similar to the magnitude of a Fourier coefficient in a Fourier decomposition

int NewWave::FrequencyBand::yLevel

(

)

const

The y-level of this frequency band.

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

• code/include/NewWave/FrequencyBand.hh