Module imagingbook.spectral

Package imagingbook.spectral.dft

Class Dft2dFast.Float

java.lang.Object

imagingbook.spectral.dft.Dft2dFast

imagingbook.spectral.dft.Dft2dFast.Float

All Implemented Interfaces:

Dft2d, Dft2d.Float

Enclosing class:

Dft2dFast

public static class Dft2dFast.Float
extends Dft2dFast
implements Dft2d.Float

Two-dimensional DFT implementation using float data.

Nested Class Summary

Nested classes/interfaces inherited from class imagingbook.spectral.dft.Dft2dFast

Dft2dFast.Double, Dft2dFast.Float

Nested classes/interfaces inherited from interface imagingbook.spectral.dft.Dft2d

Dft2d.Double, Dft2d.Float

Constructor Summary

Constructors

Constructor	Description
Float(int width, int height)	Constructor using the default scaling mode.
Float(int width, int height, ScalingMode sm)	Constructor using a specific scaling mode.

Method Summary

Modifier and Type	Method	Description
Dft1d.Float	get1dDft(int size)	Returns a suitable 1D DFT of the specified size (float).
int	getHeight()	Returns the 'height' of the 2D data array (length of dimension 1).
ScalingMode	getScalingMode()	Returns the scaling mode of this DFT (see ScalingMode).
int	getWidth()	Returns the 'width' of the 2D data array (length of dimension 0).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface imagingbook.spectral.dft.Dft2d

getHeight, getScalingMode, getWidth

Methods inherited from interface imagingbook.spectral.dft.Dft2d.Float

checkSize, extractCol, extractRow, forward, getMagnitude, insertCol, insertRow, inverse, transform

Constructor Details

Float

public Float(int width,
 int height,
 ScalingMode sm)

Constructor using a specific scaling mode.

Parameters:

width - width of the data array (dimension 0)

height - height of the data array (dimension 1)

sm - the scaling mode

Float

public Float(int width,
 int height)

Constructor using the default scaling mode.

Parameters:

width - width of the data array (dimension 0)

height - height of the data array (dimension 1)

Method Details

get1dDft

public Dft1d.Float get1dDft(int size)

Description copied from interface: Dft2d.Float

Returns a suitable 1D DFT of the specified size (float).

Specified by:

get1dDft in interface Dft2d.Float

Parameters:

size - the size of the DFT

Returns:

a Dft1d.Float instance

getWidth

public int getWidth()

Description copied from interface: Dft2d

Returns the 'width' of the 2D data array (length of dimension 0). Data arrays are indexed as data[x][y], with 0 ≤ x < width and 0 ≤ y < height.

Specified by:

getWidth in interface Dft2d

Returns:

the width of the 2D data array

getHeight

public int getHeight()

Description copied from interface: Dft2d

Returns the 'height' of the 2D data array (length of dimension 1). Data arrays are indexed as data[x][y], with 0 ≤ x < width and 0 ≤ y < height.

Specified by:

getHeight in interface Dft2d

Returns:

the height of the 2D data array

getScalingMode

public ScalingMode getScalingMode()

Description copied from interface: Dft2d

Returns the scaling mode of this DFT (see ScalingMode).

Specified by:

getScalingMode in interface Dft2d

Returns:

the scaling mode of this DFT.