com.sun.media.imageioimpl.plugins.jpeg2000

Class J2KImageReadParamJava

java.lang.Object

javax.imageio.IIOParam

javax.imageio.ImageReadParam

com.sun.media.imageio.plugins.jpeg2000.J2KImageReadParam

com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageReadParamJava

public class J2KImageReadParamJava
extends J2KImageReadParam

A subclass of ImageReadParam for reading images in the JPEG 2000 format.

The decoding parameters for JPEG 2000 are listed below:

JPEG 2000 Plugin Decoding Parameters

Parameter Name	Description
decodingRate	Specifies the decoding rate in bits per pixel (bpp) where the number of pixels is related to the image's original size (Note: this parameter is not affected by resolution). The codestream is either parsed (default) or truncated depending parsingEnabled. The default is Double.MAX_VALUE. It means decoding with the encoding rate.
resolution	Specifies the resolution level wanted for the decoded image (0 means the lowest available resolution, the resolution level gives an image with the original dimension). If the given index is greater than the number of available resolution levels of the compressed image, the decoded image has the lowest available resolution (among all tile-components). This parameter affects only the inverse wavelet transform and not the number of bytes read by the codestream parser, which depends only on decodingRate.
noROIDescaling	Ensures that no ROI de-scaling is performed. Decompression is done like there is no ROI in the image.
parsingEnabled	Enable the parsing mode or not when the decoding rate is specified. If it is false, the codestream is decoded as if it were truncated to the given rate. If it is true, the decoder creates, truncates and decodes a virtual layer progressive codestream with the same truncation points in each code-block.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	noROIDescaling Ensures that no ROI de-scaling is performed.
private boolean	parsingEnabled Enable the parsing mode or not when the decoding rate is specified .

Fields inherited from class javax.imageio.ImageReadParam

canSetSourceRenderSize, destination, destinationBands, minProgressivePass, numProgressivePasses, sourceRenderSize

Fields inherited from class javax.imageio.IIOParam

controller, defaultController, destinationOffset, destinationType, sourceBands, sourceRegion, sourceXSubsampling, sourceYSubsampling, subsamplingXOffset, subsamplingYOffset

Constructor Summary

Constructors

Constructor and Description
J2KImageReadParamJava() Constructs a default instance of J2KImageReadParamJava.
J2KImageReadParamJava(ImageReadParam param)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	getNoROIDescaling() Gets noROIDescaling
boolean	getParsingEnabled() Gets parsingEnabled
void	setNoROIDescaling(boolean value) Sets noROIDescaling
void	setParsingEnabled(boolean value) Sets parsingEnabled

Methods inherited from class com.sun.media.imageio.plugins.jpeg2000.J2KImageReadParam

getDecodingRate, getResolution, setDecodingRate, setResolution

Methods inherited from class javax.imageio.ImageReadParam

canSetSourceRenderSize, getDestination, getDestinationBands, getSourceMaxProgressivePass, getSourceMinProgressivePass, getSourceNumProgressivePasses, getSourceRenderSize, setDestination, setDestinationBands, setDestinationType, setSourceProgressivePasses, setSourceRenderSize

Methods inherited from class javax.imageio.IIOParam

activateController, getController, getDefaultController, getDestinationOffset, getDestinationType, getSourceBands, getSourceRegion, getSourceXSubsampling, getSourceYSubsampling, getSubsamplingXOffset, getSubsamplingYOffset, hasController, setController, setDestinationOffset, setSourceBands, setSourceRegion, setSourceSubsampling

Methods inherited from class java.lang.Object

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

Field Detail

noROIDescaling

private boolean noROIDescaling

Ensures that no ROI de-scaling is performed. Decompression is done like there is no ROI in the image.

parsingEnabled

private boolean parsingEnabled

Enable the parsing mode or not when the decoding rate is specified . If it is false, the codestream is decoded as if it were truncated to the given rate. If it is true, the decoder creates, truncates and decodes a virtual layer progressive codestream with the same truncation points in each code-block.

Constructor Detail

J2KImageReadParamJava

public J2KImageReadParamJava()

Constructs a default instance of J2KImageReadParamJava.

J2KImageReadParamJava

public J2KImageReadParamJava(ImageReadParam param)

Method Detail

setNoROIDescaling

public void setNoROIDescaling(boolean value)

Sets noROIDescaling

getNoROIDescaling

public boolean getNoROIDescaling()

Gets noROIDescaling

setParsingEnabled

public void setParsingEnabled(boolean value)

Sets parsingEnabled

getParsingEnabled

public boolean getParsingEnabled()

Gets parsingEnabled