Module imagingbook.spectral

Package imagingbook.spectral.dct

Class Dct2dDirect.Float

java.lang.Object

imagingbook.spectral.dct.Dct2dDirect

imagingbook.spectral.dct.Dct2dDirect.Float

All Implemented Interfaces:

Dct2d, Dct2d.Float

Enclosing class:

Dct2dDirect

public static class Dct2dDirect.Float
extends Dct2dDirect
implements Dct2d.Float

Two-dimensional DCT implementation using float data.

Nested Class Summary

Nested classes/interfaces inherited from class imagingbook.spectral.dct.Dct2dDirect

Dct2dDirect.Double, Dct2dDirect.Float

Nested classes/interfaces inherited from interface imagingbook.spectral.dct.Dct2d

Dct2d.Double, Dct2d.Float

Constructor Summary

Constructors

Constructor	Description
Float(int width, int height)	Constructor.

Method Summary

Modifier and Type	Method	Description
Dct1d.Float	get1dDct(int size)	Returns a suitable 1D DCT of the specified size (float).
int	getHeight()	Returns the 'height' of the 2D data array (length of dimension 1).
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.dct.Dct2d

getHeight, getWidth

Methods inherited from interface imagingbook.spectral.dct.Dct2d.Float

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

Constructor Details

Float

public Float(int width,
 int height)

Constructor.

Parameters:

width - width of the data array (dimension 0)

height - height of the data array (dimension 1)

Method Details

get1dDct

public Dct1d.Float get1dDct(int size)

Description copied from interface: Dct2d.Float

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

Specified by:

get1dDct in interface Dct2d.Float

Parameters:

size - the size of the DCT

Returns:

a Dct1d.Float instance

getWidth

public int getWidth()

Description copied from interface: Dct2d

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 Dct2d

Returns:

the width of the 2D data array

getHeight

public int getHeight()

Description copied from interface: Dct2d

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 Dct2d

Returns:

the height of the 2D data array