Module imagingbook.spectral

Package imagingbook.spectral.dct

Interface Dct1d.Double

All Superinterfaces:

Dct1d

All Known Implementing Classes:

Dct1dDirect.Double, Dct1dFast.Double, Dct1dSlow

Enclosing interface:

Dct1d

public static interface Dct1d.Double
extends Dct1d

Sub-interface for 1D DCT implementations operating on double data.

Nested Class Summary

Nested classes/interfaces inherited from interface imagingbook.spectral.dct.Dct1d

Dct1d.Double, Dct1d.Float

Method Summary

Modifier and Type	Method	Description
default void	checkSize(double[] a)
void	forward(double[] g)	Performs an "in-place" 1D DCT forward transformation on the supplied data.
void	inverse(double[] G)	Performs an "in-place" 1D DCT inverse transformation on the supplied spectrum.

Methods inherited from interface imagingbook.spectral.dct.Dct1d

getSize

Method Details

forward

void forward(double[] g)

Performs an "in-place" 1D DCT forward transformation on the supplied data. The input signal is replaced by the associated DFT spectrum.

Parameters:

g - the signal to be transformed (modified)

inverse

void inverse(double[] G)

Performs an "in-place" 1D DCT inverse transformation on the supplied spectrum. The input spectrum is replaced by the associated signal.

Parameters:

G - the spectrum to be transformed (modified)

checkSize

default void checkSize(double[] a)