Module imagingbook.spectral

Package imagingbook.spectral.dft

Interface Dft1d.Float

All Superinterfaces:

Dft1d

All Known Implementing Classes:

Dft1dDirect.Float, Dft1dFast.Float

Enclosing interface:

Dft1d

public static interface Dft1d.Float
extends Dft1d

Sub-interface for 1D DFT implementations operating on float data.

Nested Class Summary

Nested classes/interfaces inherited from interface imagingbook.spectral.dft.Dft1d

Dft1d.Double, Dft1d.Float

Method Summary

Modifier and Type	Method	Description
default void	checkSize(float[] re, float[] im)
void	forward(float[] gRe, float[] gIm)	Performs an "in-place" DFT forward transformation on the supplied 1D float data.
void	inverse(float[] GRe, float[] GIm)	Performs an "in-place" DFT inverse transformation on the supplied 1D float spectrum.
void	transform(float[] inRe, float[] inIm, boolean forward)	Transforms the given 1D arrays 'in-place'.

Methods inherited from interface imagingbook.spectral.dft.Dft1d

getScalingMode, getSize

Method Details

forward

void forward(float[] gRe,
 float[] gIm)

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

Parameters:

gRe - real part of the signal (modified)

gIm - imaginary part of the signal (modified)

inverse

void inverse(float[] GRe,
 float[] GIm)

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

Parameters:

GRe - real part of the spectrum (modified)

GIm - imaginary part of the spectrum (modified)

transform

void transform(float[] inRe,
 float[] inIm,
 boolean forward)

Transforms the given 1D arrays 'in-place'. Separate arrays of identical size must be supplied for the real and imaginary parts of the signal (forward) or spectrum (inverse), neither of which may be null.

Parameters:

inRe - real part of the input signal or spectrum (modified)

inIm - imaginary part of the input signal or spectrum (modified)

forward - forward transformation if true, inverse transformation if false

checkSize

default void checkSize(float[] re,
 float[] im)