J2KImageWriteParamJava (Bio-Formats API)

java.lang.Object
- javax.imageio.IIOParam
- - javax.imageio.ImageWriteParam
  - - com.sun.media.imageioimpl.plugins.jpeg2000.J2KImageWriteParamJava

public class J2KImageWriteParamJava
extends ImageWriteParam

A subclass of ImageWriteParam for writing images in the JPEG 2000 format.

JPEG 2000 plugin supports to losslessly or lossy compress gray-scale, RGB, and RGBA images with byte, unsigned short or short data type. It also supports losslessly compress bilevel, and 8-bit indexed. The result data is in the format of JP2 (JPEG 2000 Part 1 or baseline format).

Many encoding parameters for JPEG 2000 can be tile-component specific. These parameters are marked as Yes in the column TC_SPEC in the following parameter table. They must be provided according to the pattern: [<tile-component idx>] <param> (repeated as many time as needed), where <tile-component idx> respect the following policy according to the degree of priority:

(1) t<idx> c<idx> : Tile-component specification.

(2) t<idx> : Tile specification.

(3) c<idx> : Component specification.

(4) <void> : Default specification.

Where the priorities of the specifications are: (1) > (2) > (3) > (4), (">" means "overrides") <idx>: "," separates indexes, "-" separates bounds of indexes list. (for example, 0,2-4 means indexes 0,2,3 and 4).

The parameters for encoding JPEG 2000 are listed in the following table: *

**JPEG 2000 Plugin Decoding Parameters**
Parameter Name	Description	TC_SPEC
encodingRate	The bitrate in bits-per-pixel for encoding. Should be set when lossy compression scheme is used. With the default value `Double.MAX_VALUE`, a lossless compression will be done.	No
lossless	Indicates using the loseless scheme or not. It is equivalent to use reversible quantization and 5x3 integer wavelet filters. The default is `true`.	No
componentTransformation	Specifies to utilize the component transformation on some tiles. If the wavelet transform is reversible (w5x3 filter), the Reversible Component Transformation (RCT) is applied. If not reversible (w9x7 filter), the Irreversible Component Transformation (ICT) is used.	Yes, Tile_Specific
filters	Specifies which wavelet filters to use for the specified tile-components. JPEG 2000 part I only supports w5x3 and w9x7 filters.	Yes
decompositionLevel	Specifies the wavelet decomposition levels to apply to the image. If it is 0, no wavelet transform is performed, in which case the original image data will be sent to the encoder and an example is the binary data. All components and all tiles have the same number of decomposition levels. The default value is 5.	No
guardBits	The number of bits used for each tile-component in the quantizer to avoid overflow. It takes values in the range 0 through 7. The default value is 2.	Yes
quantizationStep	This parameter specifies the base normalized quantization step size for the tiles/components. It is normalized to a dynamic range of 1 in the image domain. This parameter is ignored in reversible coding. The default value is 0.0078125.	Yes
quantizationType	Specifies which quantization type to use for specified tiles/components. Not specified for lossless compression. By default, the quantization step size is "expounded". Supported quantization types specification are : "reversible" (no quantization), "derived" (derived quantization step size) and "expounded".	Yes
codeBlockSize	Specifies the maximum code-block size to use for tile-component. The maximum width and height is 1024, however the block size (i.e. width x height) must not exceed 4096. The minimum width and height is 4. The default values are (64, 64).	Yes
progressionType	Specifies which type of progression should be used when generating the codestream. The format is [<tile index>] res\|layer\|res-pos\|pos-comp\|comp-pos [res_start comp_start layer_end res_end comp_end prog] [[res_start comp_start layer_end res_end comp_end prog]...] [[<tile-component idx]...]. The value "res" generates a resolution progressive codestream with the number of layers specified by "layers" parameter. The value "layer" generates a layer progressive codestream with multiple layers. In any case, the rate-allocation algorithm optimizes for best quality in each layer. The quality measure is mean squared error (MSE) or a weighted version of it (WMSE). If no progression type is specified or imposed by other parameters, the default value is "layer". It is also possible to describe progression order changes. In this case, "res_start" is the index (from 0) of the first resolution level, "comp_start" is the index (from 0) of the first component, "layer_end" is the index (from 0) of the first layer not included, "res_end" is the index (from 0) of the first resolution level not included, "comp_end" is index (from 0) of the first component not included and "prog" is the progression type to be used for the rest of the tile/image. Several progression order changes can be specified, one after the other.	Yes
packPacketHeaderInTile	Indicates that the packet headers are packed in the tiles' headers. The default is false.	No
packPacketHeaderInMain	Indicates that the packet headers are packed in the main header. The default is false.	No
packetPerTilePart	Specifies the maximum number of packets to be put into one tile-part. Zero means putting all packets in the first tile-part of each tile.	No
ROIs	Specifies ROIs shape and location. The component index specifies which components contain the ROI. If this parameter is used, the codestream is layer progressive by default unless it is overridden by the `progressionType`. A rectanglar or circular ROI can be specified in the format: [<component idx>] R <left> <top> <width> <height> or [<component idx>] C <center x> <center y> <radius>. An arbitrary shape can be assigned by [<component idx>] A <PGM file>	Yes, component-specified
startLevelROI	This parameter defines the lowest resolution levels to belong to the ROI. By doing this, it is possible to avoid getting information for the ROI at an early stage of transmission. startLevelROI = 0 means the lowest resolution level belongs to the ROI, 1 means the second lowest etc. The default values, -1, deactivates this parameter.	No
alignROI	By specifying this parameter, the ROI mask will be limited to covering only entire code-blocks. The ROI coding can then be performed without any actual scaling of the coefficients but by instead scaling the distortion estimates.	No
bypass	Uses the lazy coding mode with the entropy coder. This will bypass the MQ coder for some of the coding passes, where the distribution is often close to uniform. Since the MQ codeword will be terminated at least once per lazy pass, it is important to use an efficient termination algorithm, `methodForMQTermination`. true enables, and false disables it. The default value is false.	Yes
resetMQ	If this is enabled the probability estimates of the MQ coder are reset after each arithmetically coded (i.e. non-lazy) coding pass. true enables, and false disables it. The default value is false.	Yes
terminateOnByte	If this is enabled the codeword (raw or MQ) is terminated on a byte boundary after each coding pass. In this case it is important to use an efficient termination algorithm, "methodForMQTermination". true enables, and false disables it. The default value is false.	Yes
causalCXInfo	Uses vertically stripe causal context formation. If this is enabled the context formation process in one stripe is independant of the next stripe (i.e. the one below it). true enables, and false disables it. The default value is false.	Yes
codeSegSymbol	Inserts an error resilience segmentation symbol in the MQ codeword at the end of each bit-plane (cleanup pass). Decoders can use this information to detect and conceal errors. true enables, and false disables it. The default value is false.	Yes
methodForMQTermination	Specifies the algorithm used to terminate the MQ codeword. The most efficient one is "near_opt", which delivers a codeword which in almost all cases is the shortest possible. The "easy" is a simpler algorithm that delivers a codeword length that is close to the previous one (in average 1 bit longer). The "predict" is almost the same as the "easy" but it leaves error resilient information on the spare least significant bits (in average 3.5 bits), which can be used by a decoder to detect errors. The "full" algorithm performs a full flush of the MQ coder and is highly inefficient. It is important to use a good termination policy since the MQ codeword can be terminated quite often, specially if the "bypass" or "terminateOnByte" parameters are enabled (in the normal case it would be terminated once per code-block, while "terminateOnByte" is specified it will be done almost 3 times per bit-plane in each code-block). The default value is "near_opt".	Yes
methodForMQLengthCalc	Specifies the algorithm to use in calculating the necessary MQ length for each decoding pass. The best one is "near_opt", which performs a rather sophisticated calculation and provides the best results. The "lazy_good" and "lazy" are very simple algorithms that provide rather conservative results. "lazy_good" performs slightly better. Please use the default unless the experiments show the benefits of different length calculation algorithms. The default value is "near_opt".	Yes
precinctPartition	Specifies precinct partition dimensions for tiles/components. They are stored from those applied to the highest resolution to those applied to the remaining resolutions in decreasing order. If less values than the number of decomposition levels are specified, then the last two values are used for the remaining resolutions.	Yes
layers	Explicitly specifies the codestream layer formation parameters. The rate (double) parameter specifies the bitrate to which the first layer should be optimized. The layers (int) parameter, if present, specifies the number of extra layers that should be added for scalability. These extra layers are not optimized. Any extra rate and layers parameters add more layers, in the same way. An additional layer is always added at the end, which is optimized to the overall target bitrate of the bit stream. Any layers (optimized or not) whose target bitrate is higher that the overall target bitrate are silently ignored. The bitrates of the extra layers that are added through the layers parameter are approximately log-spaced between the other target bitrates. If several (rate, layers) constructs appear the rate parameters must appear in increasing order. The rate allocation algorithm ensures that all coded layers have a minimal reasonable size, if not these layers are silently ignored. Default: 0.015 +20 2.0 +10.	No
SOP	Specifies whether start of packet (SOP) markers should be used. true enables, false disables it. The default value is false.	Yes
EPH	Specifies whether end of packet header (EPH) markers should be used. true enables, false disables it. The default value is false.	Yes

Field Summary

Fields
Modifier and Type	Field and Description
`private boolean`	`alignROI` By specifying this parameter, the ROI mask will be limited to covering only entire code-blocks.
`private StringSpec`	`bypass` Uses the lazy coding mode with the entropy coder.
`private StringSpec`	`causalCXInfo` Uses vertically stripe causal context formation.
`private CBlkSizeSpec`	`codeBlockSize` Specifies the maximum code-block size to use for tile-component.
`private StringSpec`	`codeSegSymbol` Inserts an error resilience segmentation symbol in the MQ codeword at the end of each bit-plane (cleanup pass).
`private ForwCompTransfSpec`	`componentTransformation` Specifies to utilize the component transformation with some tiles.
`private IntegerSpec`	`decompositionLevel` Specifies the number of wavelet decomposition levels to apply to the image.
`private boolean`	`enableCT`
`private double`	`encodingRate` The bitrate in bits-per-pixel for encoding.
`private StringSpec`	`EPH` Specifies whether end of packet header (EPH) markers should be used.
`private AnWTFilterSpec`	`filters` Specifies which filters to use for the specified tile-components.
`private GuardBitsSpec`	`guardBits` The number of bits used for each tile-component in the quantizer to avoid overflow.
`private RenderedImage`	`imgsrc`
`private String`	`layers` Explicitly specifies the codestream layer formation parameters.
`private boolean`	`lossless` Indicates using the loseless scheme or not.
`private StringSpec`	`methodForMQLengthCalc` Specifies the algorithm to use in calculating the necessary MQ length for each decoding pass.
`private StringSpec`	`methodForMQTermination` Specifies the algorithm used to terminate the MQ codeword.
`private int`	`minX`
`private int`	`minY`
`private int`	`numComponents`
`private int`	`numTiles`
`private int`	`packetPerTilePart` Specifies the maximum number of packets to be put into one tile-part.
`private boolean`	`packPacketHeaderInMain` Indicates that the packet headers are packed in the main header.
`private boolean`	`packPacketHeaderInTile` Indicates that the packet headers are packed in the tiles' headers.
`private PrecinctSizeSpec`	`precinctPartition` Specifies precinct partition dimensions for tiles/components.
`private String`	`progressionName` The specified (tile-component) progression.
`private ProgressionSpec`	`progressionType` Specifies which type of progression should be used when generating the codestream.
`private QuantStepSizeSpec`	`quantizationStep` This parameter specifies the base normalized quantization step size for the tiles/components.
`private QuantTypeSpec`	`quantizationType` Specifies which quantization type to use for specified tiles/components.
`private Raster`	`raster`
`private StringSpec`	`resetMQ` If this is enabled the probability estimates of the MQ coder are reset after each arithmetically coded (i.e.
`private MaxShiftSpec`	`ROIs` Specifies ROIs shape and location.
`private StringSpec`	`SOP` Specifies whether start of packet (SOP) markers should be used.
`private int`	`startLevelROI` This parameter defines the lowest resolution levels to belong to the ROI.
`private StringSpec`	`terminateOnByte` If this is enabled the codeword (raw or MQ) is terminated on a byte boundary after each coding pass.

Fields inherited from class javax.imageio.ImageWriteParam
canOffsetTiles, canWriteCompressed, canWriteProgressive, canWriteTiles, compressionMode, compressionQuality, compressionType, compressionTypes, locale, MODE_COPY_FROM_METADATA, MODE_DEFAULT, MODE_DISABLED, MODE_EXPLICIT, preferredTileSizes, progressiveMode, tileGridXOffset, tileGridYOffset, tileHeight, tileWidth, tilingMode, tilingSet

Fields inherited from class javax.imageio.IIOParam
controller, defaultController, destinationOffset, destinationType, sourceBands, sourceRegion, sourceXSubsampling, sourceYSubsampling, subsamplingXOffset, subsamplingYOffset

Constructor Summary

Constructors
Constructor and Description
`J2KImageWriteParamJava()` Constructs a `J2KImageWriteParamJava` object with default values for all parameters.
`J2KImageWriteParamJava(IIOImage image, ImageWriteParam param)` Constructor to set locales.
`J2KImageWriteParamJava(Raster raster)` Constructs a `J2KImageWriteParamJava` object with default values for all parameters.
`J2KImageWriteParamJava(RenderedImage imgsrc)` Constructs a `J2KImageWriteParamJava` object with default values for all parameters.
`J2KImageWriteParamJava(RenderedImage imgsrc, Locale locale)` Constructor to set locales.

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`getAlignROI()` Gets `alignROI`
`StringSpec`	`getBypass()` Gets `bypass`
`StringSpec`	`getCausalCXInfo()` Gets `causalCXInfo`
`CBlkSizeSpec`	`getCodeBlockSize()` Gets `codeBlockSize`
`StringSpec`	`getCodeSegSymbol()` Gets `codeSegSymbol`
`ForwCompTransfSpec`	`getComponentTransformation()` Gets `componentTransformation`
`IntegerSpec`	`getDecompositionLevel()` Gets `decompositionLevel`
`double`	`getEncodingRate()` Gets `encodingRate`
`StringSpec`	`getEPH()` Gets `EPH`
`AnWTFilterSpec`	`getFilters()` Gets `filters`
`GuardBitsSpec`	`getGuardBits()` Gets `guardBits`
`String`	`getLayers()` Gets `layers`
`boolean`	`getLossless()` Gets `encodingRate`
`StringSpec`	`getMethodForMQLengthCalc()` Gets `methodForMQLengthCalc`
`StringSpec`	`getMethodForMQTermination()` Gets `methodForMQTermination`
`int`	`getMinX()` Gets `minX`
`int`	`getMinY()` Gets `minY`
`int`	`getNumComponents()` Gets the number of components
`int`	`getNumTiles()` Gets the number of tiles
`int`	`getPacketPerTilePart()` Gets `packetPerTilePart`
`boolean`	`getPackPacketHeaderInMain()` Gets `packPacketHeaderInMain`
`boolean`	`getPackPacketHeaderInTile()` Gets `packPacketHeaderInTile`
`PrecinctSizeSpec`	`getPrecinctPartition()` Gets `precinctPartition`
`String`	`getProgressionName()` Gets `progressionType`
`ProgressionSpec`	`getProgressionType()` Gets `progressionType`
`QuantStepSizeSpec`	`getQuantizationStep()` Gets `quantizationStep`
`QuantTypeSpec`	`getQuantizationType()` Gets `quantizationType`
`StringSpec`	`getResetMQ()` Gets `resetMQ`
`MaxShiftSpec`	`getROIs()` Gets `ROIs`
`StringSpec`	`getSOP()` Gets `SOP`
`int`	`getStartLevelROI()` Gets `startLevel`
`StringSpec`	`getTerminateOnByte()` Gets `terminateOnByte`
`void`	`setAlignROI(boolean align)` Sets `alignROI`
`void`	`setBypass(String values)` Sets `bypass`
`void`	`setCausalCXInfo(String values)` Sets `causalCXInfo`
`void`	`setCodeBlockSize(String values)` Sets `codeBlockSize`
`void`	`setCodeSegSymbol(String values)` Sets `codeSegSymbol`
`void`	`setComponentTransformation(String values)` Sets `componentTransformation`
`void`	`setDecompositionLevel(String values)` Sets `decompositionLevel`
`private void`	`setDefaults()`
`private void`	`setDefaults(Raster raster)` Set source
`private void`	`setDefaults(RenderedImage imgsrc)` Set source
`void`	`setEncodingRate(double rate)` Sets `encodingRate`
`void`	`setEPH(String values)` Sets `EPH`
`void`	`setFilters(String values)` Sets `filters`
`void`	`setGuardBits(String values)` Sets `guardBits`
`void`	`setLayers(String value)` Sets the `layers`
`void`	`setLossless(boolean lossless)` Sets `lossless`
`void`	`setMethodForMQLengthCalc(String values)` Sets `methodForMQLengthCalc`
`void`	`setMethodForMQTermination(String values)` Sets `methodForMQTermination`
`void`	`setMinX(int minX)` Sets `minX`
`void`	`setMinY(int minY)` Sets `minY`
`void`	`setPacketPerTilePart(int packetPerTilePart)` Sets `packetPerTilePart`
`void`	`setPackPacketHeaderInMain(boolean packPacketHeaderInMain)` Sets `packPacketHeaderInMain`
`void`	`setPackPacketHeaderInTile(boolean packPacketHeaderInTile)` Sets `packPacketHeaderInTile`
`void`	`setPrecinctPartition(String values)` Sets `precinctPartition`
`void`	`setProgressionName(String values)` Sets `progressionName`
`void`	`setProgressionType(LayersInfo lyrs, String values)` Sets `progressionType`
`void`	`setQuantizationStep(String values)` Sets `quantizationStep`
`void`	`setQuantizationType(String values)` Sets `quantizationType`
`void`	`setResetMQ(String values)` Sets `resetMQ`
`void`	`setROIs(String values)` Sets `ROIs`
`void`	`setSOP(String values)` Sets `SOP`
`void`	`setSourceBands(int[] bands)` Override the method setSourceBands in the super class.
`void`	`setSourceSubsampling(int sx, int sy, int xOff, int yOff)` Override the method setSourceSubsampling in the super class.
`void`	`setStartLevelROI(int value)` Sets the `startLevelROI`
`private void`	`setSuperProperties()`
`void`	`setTerminateOnByte(String values)` Sets `terminateOnByte`
`void`	`setTiling(int tw, int th, int xOff, int yOff)` Override the method setTiling in the super class.

Methods inherited from class javax.imageio.IIOParam
activateController, getController, getDefaultController, getDestinationOffset, getDestinationType, getSourceBands, getSourceRegion, getSourceXSubsampling, getSourceYSubsampling, getSubsamplingXOffset, getSubsamplingYOffset, hasController, setController, setDestinationOffset, setDestinationType, setSourceRegion

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - packPacketHeaderInTile
```
private boolean packPacketHeaderInTile
```
    Indicates that the packet headers are packed in the tiles' headers.
  - packPacketHeaderInMain
```
private boolean packPacketHeaderInMain
```
    Indicates that the packet headers are packed in the main header.
  - packetPerTilePart
```
private int packetPerTilePart
```
    Specifies the maximum number of packets to be put into one tile-part. Zero means include all packets in first tile-part of each tile.
  - encodingRate
```
private double encodingRate
```
    The bitrate in bits-per-pixel for encoding. Should be set when lossy compression scheme is used. The default is Double.MAX_VALUE.
  - lossless
```
private boolean lossless
```
    Indicates using the loseless scheme or not. It is equivalent to use reversible quantization and 5x3 integer wavelet filters.
  - componentTransformation
```
private ForwCompTransfSpec componentTransformation
```
    Specifies to utilize the component transformation with some tiles. If the wavelet transform is reversible (w5x3 filter), the Reversible Component Transformation (RCT) is applied. If not reversible (w9x7 filter), the Irreversible Component Transformation (ICT) is used.
  - enableCT
```
private boolean enableCT
```
  - filters
```
private AnWTFilterSpec filters
```
    Specifies which filters to use for the specified tile-components. JPEG 2000 part I only supports w5x3 and w9x7 filters.
  - decompositionLevel
```
private IntegerSpec decompositionLevel
```
    Specifies the number of wavelet decomposition levels to apply to the image. If it is 0, no wavelet transform is performed, in which case the original image data will be sent to the encoder and an example is the binary data. All components and all tiles have the same number of decomposition levels. Default: 5.
  - guardBits
```
private GuardBitsSpec guardBits
```
    The number of bits used for each tile-component in the quantizer to avoid overflow. It takes values in the range 0 through 7. Default: 2.
  - quantizationStep
```
private QuantStepSizeSpec quantizationStep
```
    This parameter specifies the base normalized quantization step size for the tiles/components. It is normalized to a dynamic range of 1 in the image domain. This parameter is ignored in reversible coding. Default: 0.0078125.
  - quantizationType
```
private QuantTypeSpec quantizationType
```
    Specifies which quantization type to use for specified tiles/components. Not specified for lossless compression. By default , the quantization step size is "expounded". Supported quantization types specification are : "reversible" (no quantization), "derived" (derived quantization step size) and "expounded".
  - startLevelROI
```
private int startLevelROI
```
    This parameter defines the lowest resolution levels to belong to the ROI. By doing this, it is possible to avoid only getting information for the ROI at an early stage of transmission. startLevelROI = 0 means the lowest resolution level belongs to the ROI, 1 means the second lowest etc. The default values, -1, deactivates this parameter.
  - alignROI
```
private boolean alignROI
```
    By specifying this parameter, the ROI mask will be limited to covering only entire code-blocks. The ROI coding can then be performed without any actual scaling of the coefficients but by instead scaling the distortion estimates.
  - ROIs
```
private MaxShiftSpec ROIs
```
    Specifies ROIs shape and location. The component index specifies which components contain the ROI. If this parameter is used, the codestream is layer progressive by default unless it is overridden by the progressionType.
  - codeBlockSize
```
private CBlkSizeSpec codeBlockSize
```
    Specifies the maximum code-block size to use for tile-component. The maximum width and height is 1024, however the image area (i.e. width x height) must not exceed 4096. The minimum width and height is 4. Default: 64 64.
  - bypass
```
private StringSpec bypass
```
    Uses the lazy coding mode with the entropy coder. This will bypass the MQ coder for some of the coding passes, where the distribution is often close to uniform. Since the MQ codeword will be terminated at least once per lazy pass, it is important to use an efficient termination algorithm, methodForMQTermination. true enables, and false disables it. Default: false.
  - resetMQ
```
private StringSpec resetMQ
```
    If this is enabled the probability estimates of the MQ coder are reset after each arithmetically coded (i.e. non-lazy) coding pass. true enables, and false disables it. Default: false.
  - terminateOnByte
```
private StringSpec terminateOnByte
```
    If this is enabled the codeword (raw or MQ) is terminated on a byte boundary after each coding pass. In this case it is important to use an efficient termination algorithm, the "methodForMQTermination". true enables, and false disables it. Default: false.
  - causalCXInfo
```
private StringSpec causalCXInfo
```
    Uses vertically stripe causal context formation. If this is enabled the context formation process in one stripe is independant of the next stripe (i.e. the one below it). true enables, and false disables it. Default: false.
  - codeSegSymbol
```
private StringSpec codeSegSymbol
```
    Inserts an error resilience segmentation symbol in the MQ codeword at the end of each bit-plane (cleanup pass). Decoders can use this information to detect and conceal errors. true enables, and false disables it. Default: false.
  - methodForMQTermination
```
private StringSpec methodForMQTermination
```
    Specifies the algorithm used to terminate the MQ codeword. The most efficient one is "near_opt", which delivers a codeword which in almost all cases is the shortest possible. The "easy" is a simpler algorithm that delivers a codeword length that is close to the previous one (in average 1 bit longer). The "predict" is almost the same as the "easy" but it leaves error resilient information on the spare least significant bits (in average 3.5 bits), which can be used by a decoder to detect errors. The "full" algorithm performs a full flush of the MQ coder and is highly inefficient. It is important to use a good termination policy since the MQ codeword can be terminated quite often, specially if the "bypass" or "terminateOnByte" parameters are enabled (in the normal case it would be terminated once per code-block, while "terminateOnByte" is specified it will be done almost 3 times per bit-plane in each code-block). Default: near_opt.
  - methodForMQLengthCalc
```
private StringSpec methodForMQLengthCalc
```
    Specifies the algorithm to use in calculating the necessary MQ length for each decoding pass. The best one is "near_opt", which performs a rather sophisticated calculation and provides the best results. The "lazy_good" and "lazy" are very simple algorithms that provide rather conservative results. "lazy_good" performs slightly better. Please use the default unless the experiments show the benefits of different length calculation algorithms. Default: near_opt.
  - precinctPartition
```
private PrecinctSizeSpec precinctPartition
```
    Specifies precinct partition dimensions for tiles/components. They are stored from those applied to the highest resolution to those applied to the remaining resolutions in decreasing order. If less values than the number of decomposition levels are specified, then the last two values are used for the remaining resolutions.
  - progressionType
```
private ProgressionSpec progressionType
```
    Specifies which type of progression should be used when generating the codestream. The value "res" generates a resolution progressive codestream with the number of layers specified by "layers" parameter. The value "layer" generates a layer progressive codestream with multiple layers. In any case, the rate-allocation algorithm optimizes for best quality in each layer. The quality measure is mean squared error (MSE) or a weighted version of it (WMSE). If no progression type is specified or imposed by other modules, the default value is "layer". It is also possible to describe progression order changes. In this case, "res_start" is the index (from 0) of the first resolution level, "comp_start" is the index (from 0) of the first component, "ly_end" is the index (from 0) of the first layer not included, "res_end" is the index (from 0) of the first resolution level not included, "comp_end" is index (from 0) of the first component not included and "prog" is the progression type to be used for the rest of the tile/image. Several progression order changes can be specified, one after the other.
  - progressionName
```
private String progressionName
```
    The specified (tile-component) progression. Will be used to generate the progression type.
  - layers
```
private String layers
```
    Explicitly specifies the codestream layer formation parameters. The rate (double) parameter specifies the bitrate to which the first layer should be optimized. The layers (int) parameter, if present, specifies the number of extra layers that should be added for scalability. These extra layers are not optimized. Any extra rate and layers parameters add more layers, in the same way. An additional layer is always added at the end, which is optimized to the overall target bitrate of the bit stream. Any layers (optimized or not) whose target bitrate is higher that the overall target bitrate are silently ignored. The bitrates of the extra layers that are added through the layers parameter are approximately log-spaced between the other target bitrates. If several (rate, layers) constructs appear the rate parameters must appear in increasing order. The rate allocation algorithm ensures that all coded layers have a minimal reasonable size, if not these layers are silently ignored. Default: 0.015 +20 2.0 +10.
  - EPH
```
private StringSpec EPH
```
    Specifies whether end of packet header (EPH) markers should be used. true enables, false disables it. Default: false.
  - SOP
```
private StringSpec SOP
```
    Specifies whether start of packet (SOP) markers should be used. true enables, false disables it. Default: false.
  - numTiles
```
private int numTiles
```
  - numComponents
```
private int numComponents
```
  - imgsrc
```
private RenderedImage imgsrc
```
  - raster
```
private Raster raster
```
  - minX
```
private int minX
```
  - minY
```
private int minY
```
- Constructor Detail
  - J2KImageWriteParamJava
```
public J2KImageWriteParamJava(RenderedImage imgsrc,
                      Locale locale)
```
    Constructor to set locales.
  - J2KImageWriteParamJava
```
public J2KImageWriteParamJava(IIOImage image,
                      ImageWriteParam param)
```
    Constructor to set locales.
  - J2KImageWriteParamJava
```
public J2KImageWriteParamJava()
```
    Constructs a J2KImageWriteParamJava object with default values for all parameters.
  - J2KImageWriteParamJava
```
public J2KImageWriteParamJava(RenderedImage imgsrc)
```
    Constructs a J2KImageWriteParamJava object with default values for all parameters.
  - J2KImageWriteParamJava
```
public J2KImageWriteParamJava(Raster raster)
```
    Constructs a J2KImageWriteParamJava object with default values for all parameters.
- Method Detail
  - setSuperProperties
```
private void setSuperProperties()
```
  - setDefaults
```
private void setDefaults(Raster raster)
```
    Set source
  - setDefaults
```
private void setDefaults(RenderedImage imgsrc)
```
    Set source
  - setDefaults
```
private void setDefaults()
```
  - setEncodingRate
```
public void setEncodingRate(double rate)
```
    Sets encodingRate
  - getEncodingRate
```
public double getEncodingRate()
```
    Gets encodingRate
  - setLossless
```
public void setLossless(boolean lossless)
```
    Sets lossless
  - getLossless
```
public boolean getLossless()
```
    Gets encodingRate
  - setPacketPerTilePart
```
public void setPacketPerTilePart(int packetPerTilePart)
```
    Sets packetPerTilePart
  - getPacketPerTilePart
```
public int getPacketPerTilePart()
```
    Gets packetPerTilePart
  - setPackPacketHeaderInTile
```
public void setPackPacketHeaderInTile(boolean packPacketHeaderInTile)
```
    Sets packPacketHeaderInTile
  - getPackPacketHeaderInTile
```
public boolean getPackPacketHeaderInTile()
```
    Gets packPacketHeaderInTile
  - setPackPacketHeaderInMain
```
public void setPackPacketHeaderInMain(boolean packPacketHeaderInMain)
```
    Sets packPacketHeaderInMain
  - getPackPacketHeaderInMain
```
public boolean getPackPacketHeaderInMain()
```
    Gets packPacketHeaderInMain
  - setAlignROI
```
public void setAlignROI(boolean align)
```
    Sets alignROI
  - getAlignROI
```
public boolean getAlignROI()
```
    Gets alignROI
  - setROIs
```
public void setROIs(String values)
```
    Sets ROIs
  - getROIs
```
public MaxShiftSpec getROIs()
```
    Gets ROIs
  - setQuantizationType
```
public void setQuantizationType(String values)
```
    Sets quantizationType
  - getQuantizationType
```
public QuantTypeSpec getQuantizationType()
```
    Gets quantizationType
  - setQuantizationStep
```
public void setQuantizationStep(String values)
```
    Sets quantizationStep
  - getQuantizationStep
```
public QuantStepSizeSpec getQuantizationStep()
```
    Gets quantizationStep
  - setGuardBits
```
public void setGuardBits(String values)
```
    Sets guardBits
  - getGuardBits
```
public GuardBitsSpec getGuardBits()
```
    Gets guardBits
  - setFilters
```
public void setFilters(String values)
```
    Sets filters
  - getFilters
```
public AnWTFilterSpec getFilters()
```
    Gets filters
  - setDecompositionLevel
```
public void setDecompositionLevel(String values)
```
    Sets decompositionLevel
  - getDecompositionLevel
```
public IntegerSpec getDecompositionLevel()
```
    Gets decompositionLevel
  - setComponentTransformation
```
public void setComponentTransformation(String values)
```
    Sets componentTransformation
  - getComponentTransformation
```
public ForwCompTransfSpec getComponentTransformation()
```
    Gets componentTransformation
  - setMethodForMQLengthCalc
```
public void setMethodForMQLengthCalc(String values)
```
    Sets methodForMQLengthCalc
  - getMethodForMQLengthCalc
```
public StringSpec getMethodForMQLengthCalc()
```
    Gets methodForMQLengthCalc
  - setMethodForMQTermination
```
public void setMethodForMQTermination(String values)
```
    Sets methodForMQTermination
  - getMethodForMQTermination
```
public StringSpec getMethodForMQTermination()
```
    Gets methodForMQTermination
  - setCodeSegSymbol
```
public void setCodeSegSymbol(String values)
```
    Sets codeSegSymbol
  - getCodeSegSymbol
```
public StringSpec getCodeSegSymbol()
```
    Gets codeSegSymbol
  - setCausalCXInfo
```
public void setCausalCXInfo(String values)
```
    Sets causalCXInfo
  - getCausalCXInfo
```
public StringSpec getCausalCXInfo()
```
    Gets causalCXInfo
  - setTerminateOnByte
```
public void setTerminateOnByte(String values)
```
    Sets terminateOnByte
  - getTerminateOnByte
```
public StringSpec getTerminateOnByte()
```
    Gets terminateOnByte
  - setResetMQ
```
public void setResetMQ(String values)
```
    Sets resetMQ
  - getResetMQ
```
public StringSpec getResetMQ()
```
    Gets resetMQ
  - setBypass
```
public void setBypass(String values)
```
    Sets bypass
  - getBypass
```
public StringSpec getBypass()
```
    Gets bypass
  - setCodeBlockSize
```
public void setCodeBlockSize(String values)
```
    Sets codeBlockSize
  - getCodeBlockSize
```
public CBlkSizeSpec getCodeBlockSize()
```
    Gets codeBlockSize
  - setPrecinctPartition
```
public void setPrecinctPartition(String values)
```
    Sets precinctPartition
  - getPrecinctPartition
```
public PrecinctSizeSpec getPrecinctPartition()
```
    Gets precinctPartition
  - setSOP
```
public void setSOP(String values)
```
    Sets SOP
  - getSOP
```
public StringSpec getSOP()
```
    Gets SOP
  - setEPH
```
public void setEPH(String values)
```
    Sets EPH
  - getEPH
```
public StringSpec getEPH()
```
    Gets EPH
  - setProgressionName
```
public void setProgressionName(String values)
```
    Sets progressionName
  - getProgressionName
```
public String getProgressionName()
```
    Gets progressionType
  - setProgressionType
```
public void setProgressionType(LayersInfo lyrs,
                      String values)
```
    Sets progressionType
  - getProgressionType
```
public ProgressionSpec getProgressionType()
```
    Gets progressionType
  - setStartLevelROI
```
public void setStartLevelROI(int value)
```
    Sets the startLevelROI
  - getStartLevelROI
```
public int getStartLevelROI()
```
    Gets startLevel
  - setLayers
```
public void setLayers(String value)
```
    Sets the layers
  - getLayers
```
public String getLayers()
```
    Gets layers
  - setMinX
```
public void setMinX(int minX)
```
    Sets minX
  - getMinX
```
public int getMinX()
```
    Gets minX
  - setMinY
```
public void setMinY(int minY)
```
    Sets minY
  - getMinY
```
public int getMinY()
```
    Gets minY
  - getNumTiles
```
public int getNumTiles()
```
    Gets the number of tiles
  - getNumComponents
```
public int getNumComponents()
```
    Gets the number of components
  - setSourceBands
```
public void setSourceBands(int[] bands)
```
    Override the method setSourceBands in the super class. This method should be called before any tile-specific parameter setting method to be called.
    
    Overrides:
    
    setSourceBands in class IIOParam
  - setTiling
```
public void setTiling(int tw,
             int th,
             int xOff,
             int yOff)
```
    Override the method setTiling in the super class. This method should be called before any tile-specific parameter setting method to be called.
    
    Overrides:
    
    setTiling in class ImageWriteParam
  - setSourceSubsampling
```
public void setSourceSubsampling(int sx,
                        int sy,
                        int xOff,
                        int yOff)
```
    Override the method setSourceSubsampling in the super class. This method should be called before any tile-specific parameter setting method to be called.
    
    Overrides:
    
    setSourceSubsampling in class IIOParam

Class J2KImageWriteParamJava

Field Summary

Fields inherited from class javax.imageio.ImageWriteParam

Fields inherited from class javax.imageio.IIOParam

Constructor Summary

Method Summary

Methods inherited from class javax.imageio.ImageWriteParam

Methods inherited from class javax.imageio.IIOParam

Methods inherited from class java.lang.Object

Field Detail

packPacketHeaderInTile

packPacketHeaderInMain

packetPerTilePart

encodingRate

lossless

componentTransformation

enableCT

filters

decompositionLevel

guardBits

quantizationStep

quantizationType

startLevelROI

alignROI

ROIs

codeBlockSize

bypass

resetMQ

terminateOnByte

causalCXInfo

codeSegSymbol

methodForMQTermination

methodForMQLengthCalc

precinctPartition

progressionType

progressionName

layers

EPH

SOP

numTiles

numComponents

imgsrc

raster

minX

minY

Constructor Detail

J2KImageWriteParamJava

J2KImageWriteParamJava

J2KImageWriteParamJava

J2KImageWriteParamJava

J2KImageWriteParamJava

Method Detail

setSuperProperties

setDefaults

setDefaults

setDefaults

setEncodingRate

getEncodingRate

setLossless

getLossless

setPacketPerTilePart

getPacketPerTilePart

setPackPacketHeaderInTile

getPackPacketHeaderInTile

setPackPacketHeaderInMain

getPackPacketHeaderInMain

setAlignROI

getAlignROI

setROIs

getROIs

setQuantizationType

getQuantizationType

setQuantizationStep

getQuantizationStep

setGuardBits

getGuardBits

setFilters

getFilters

setDecompositionLevel

getDecompositionLevel