CADI.Common.LogicalTarget.JPEG2000
Class CalculateRequiredComponentsDPCM

java.lang.Object
  CADI.Common.LogicalTarget.JPEG2000.CalculateRequiredComponentsDPCM

public class CalculateRequiredComponentsDPCM
extends java.lang.Object

This class is useful to calculate which are the necessary components to invert a DPCM transform.

Version:

1.0.1 2008/10/12

Author:

Group on Interactive Coding of Images (GICI)

Field Summary

static int	CLASSIC Is the classical DPCM, where each component (apart from first one) is obtained as a difference from the previous one.
private int[]	compsArray Is an one-dimensional array with the inital components values.
private int	maxNumComps Is the maximum number of components.
private int[]	requiredCompsArray Contains the required components which will be necessary to invert the compsArray components.
static int	RESTART_ARBITRARY Is a clustered DPCM where the indexes for the restart can take each value from the value ranges, with and without regular recurrence.
static int	RESTART_PERIODIC Is a clustered DPCM where the restart index is fixed.
private int	restartIndex Is the component index used in the RESTART_PERIODIC mode.
private int[]	restartIndexes Is a one-dimensional array with component indexes for the 3 mode.
private int	type Indicates the type of DPCM.

Constructor Summary

CalculateRequiredComponentsDPCM(int[][] comps, int maxNumComps)
Constructor.

CalculateRequiredComponentsDPCM(int[] compsArray, int maxNumComps)
Constructor.

Method Summary

private int[]	calculateRequiredComponentsWithRestartFixed() Calculates which are the necessary components to invert a DPCM transform using fixed restart components.
private int[]	calculateRequiredComponentsWithRestartPeriodical() Calculates which are the necessary components to inver a DPCM transform using periodical components.
int[][]	getRequiredComps() Returns the requiredCompsArray as a range of components.
int[]	getRequiredCompsArray() Returns the requiredCompsArray attribute.
void	list(java.io.PrintStream out) Prints this Client Capabilities and Preferences fields out to the specified output stream.
void	run() Performs the calculus of the required components.
void	setClassical() Sets the DPCM type to classic.
void	setRestartArbitrary(int[] restartIndexes) Sets the DPCM type to the restart fixed mode.
void	setRestartPeriodic(int restartIndex) Sets the DPCM type to the restart periodical mode.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

type

private int type

Indicates the type of DPCM. Allowed values are: CLASSIC, RESTART_PERIODIC, and RESTART_ARBITRARY.

CLASSIC

public static final int CLASSIC

Is the classical DPCM, where each component (apart from first one) is obtained as a difference from the previous one.

See Also:

Constant Field Values

RESTART_PERIODIC

public static final int RESTART_PERIODIC

Is a clustered DPCM where the restart index is fixed.

See Also:

Constant Field Values

RESTART_ARBITRARY

public static final int RESTART_ARBITRARY

Is a clustered DPCM where the indexes for the restart can take each value from the value ranges, with and without regular recurrence.

See Also:

Constant Field Values

compsArray

private int[] compsArray

Is an one-dimensional array with the inital components values.

maxNumComps

private int maxNumComps

Is the maximum number of components.

restartIndex

private int restartIndex

Is the component index used in the RESTART_PERIODIC mode.

restartIndexes

private int[] restartIndexes

Is a one-dimensional array with component indexes for the 3 mode.

requiredCompsArray

private int[] requiredCompsArray

Contains the required components which will be necessary to invert the compsArray components.

Constructor Detail

CalculateRequiredComponentsDPCM

public CalculateRequiredComponentsDPCM(int[] compsArray,
                                       int maxNumComps)

Constructor.

Parameters:

compsArray - definition compsArray.

maxNumComps - definition in maxNumComps.

CalculateRequiredComponentsDPCM

public CalculateRequiredComponentsDPCM(int[][] comps,
                                       int maxNumComps)

Constructor.

Parameters:

comps - definition in ViewWindowField.comps.

maxNumComps - definition in maxNumComps.

Method Detail

setClassical

public void setClassical()

Sets the DPCM type to classic. Further information, see CLASSIC.

setRestartPeriodic

public void setRestartPeriodic(int restartIndex)

Sets the DPCM type to the restart periodical mode. Further information, see RESTART_PERIODIC.

Parameters:

restartIndex - definition in restartIndex.

setRestartArbitrary

public void setRestartArbitrary(int[] restartIndexes)

Sets the DPCM type to the restart fixed mode. Further information, see RESTART_ARBITRARY.

Parameters:

restartIndexes - defintion in restartIndexes.

run

public void run()
         throws java.lang.IllegalAccessException

Performs the calculus of the required components.

Throws:

java.lang.IllegalAccessException

getRequiredCompsArray

public int[] getRequiredCompsArray()

Returns the requiredCompsArray attribute.

Returns:

the requiredCompsArray attribute.

getRequiredComps

public int[][] getRequiredComps()

Returns the requiredCompsArray as a range of components.

Returns:

the requiredCompsArray as a range of components.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

list

public void list(java.io.PrintStream out)

Prints this Client Capabilities and Preferences fields out to the specified output stream. This method is useful for debugging.

Parameters:

out - an output stream.

calculateRequiredComponentsWithRestartPeriodical

private int[] calculateRequiredComponentsWithRestartPeriodical()

Calculates which are the necessary components to inver a DPCM transform using periodical components.

Returns:

an one-dimensional array with the necessary components.

calculateRequiredComponentsWithRestartFixed

private int[] calculateRequiredComponentsWithRestartFixed()

Calculates which are the necessary components to invert a DPCM transform using fixed restart components.

Returns:

an one-dimensional array with the necessary components.