TER.TERdecoder.BPEDecoder
Class RefineGenerationAC

java.lang.Object
  TER.TERdecoder.BPEDecoder.RefineGenerationAC

public class RefineGenerationAC
extends java.lang.Object

Field Summary

(package private) byte[][][][]	blockStatus Definition in CodeBlockAC.blockStatus
(package private) int[]	BP
(package private) int	channel
(package private) ACEntropyDecoder	entropyDecoder
(package private) float	gamma
(package private) int	generation
(package private) boolean	minusHalf
(package private) boolean	parametersSet To know if parameters are set.
(package private) float[][][]	recoveredImage
(package private) int	threshold
(package private) int	WTLevels
(package private) int[]	xInit
(package private) int[]	yInit

Constructor Summary

RefineGenerationAC(float[][][] recoveredImage)

Method Summary

byte[][][][]	getBlockStatus()
private float	getGamma(int bitPlane, boolean lastBitPlane) Get the value to be added or substracted to get the desired approximation of the refined value
float[][][]	getRecoveredImage()
private boolean	lastBitPlane(int bitPlane, int rLevel, int subband) Indicates if a bitplane if the last for a given bit plane
void	run(int bitplane) Decode as many generations as the user indicates in the parameters
void	setParameters(ACEntropyDecoder entropyDecoder, byte[][][][] blockStatus, int WTLevels, int resolutionLevel, int[] BP, int[] xInit, int[] yInit, int channel, float gamma, boolean minusHalf)
private void	setRefinedValue(int family, int y, int x, int refinementBit, float gammaT, float previousGammaT)
private void	setThreshold(int bitplane)

Methods inherited from class java.lang.Object

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

Field Detail

entropyDecoder

ACEntropyDecoder entropyDecoder

recoveredImage

float[][][] recoveredImage

parametersSet

boolean parametersSet

To know if parameters are set.

True indicates that they are set otherwise false.

blockStatus

byte[][][][] blockStatus

Definition in CodeBlockAC.blockStatus

xInit

int[] xInit

yInit

int[] yInit

channel

int channel

generation

int generation

WTLevels

int WTLevels

BP

int[] BP

threshold

int threshold

gamma

float gamma

minusHalf

boolean minusHalf

Constructor Detail

RefineGenerationAC

public RefineGenerationAC(float[][][] recoveredImage)

Method Detail

setParameters

public void setParameters(ACEntropyDecoder entropyDecoder,
                          byte[][][][] blockStatus,
                          int WTLevels,
                          int resolutionLevel,
                          int[] BP,
                          int[] xInit,
                          int[] yInit,
                          int channel,
                          float gamma,
                          boolean minusHalf)

run

public void run(int bitplane)
         throws java.lang.Exception

Decode as many generations as the user indicates in the parameters

Parameters:

bitplane - indicates the bit plane that must be refined

Throws:

java.lang.Exception - when something goes wrong and the AC decoding must be stoped

setThreshold

private void setThreshold(int bitplane)

setRefinedValue

private void setRefinedValue(int family,
                             int y,
                             int x,
                             int refinementBit,
                             float gammaT,
                             float previousGammaT)

getGamma

private float getGamma(int bitPlane,
                       boolean lastBitPlane)

Get the value to be added or substracted to get the desired approximation of the refined value

Parameters:

bitPlane - indicates the bit plane that must be refined

lastBitPlane - indicates if this bit plane is the last to be refined

Returns:

an integer that contains the value to be added or substracted to reach the desired approximation

lastBitPlane

private boolean lastBitPlane(int bitPlane,
                             int rLevel,
                             int subband)

Indicates if a bitplane if the last for a given bit plane

Parameters:

bitPlane - indicates the bit plane that is being refined

rLevel - indicates the resolution level that is being refined

subband - indicates the family that is being refined

Returns:

a boolean indicating if this is the last bit plane to be refined for this subband

getRecoveredImage

public float[][][] getRecoveredImage()

getBlockStatus

public byte[][][][] getBlockStatus()