All Implemented Interfaces:


public final class WebPWriteParam
extends ImageWriteParam

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description
`public final static Integer`	`LOSSY_COMPRESSION`
`public final static Integer`	`LOSSLESS_COMPRESSION`
`public final static Integer`	`PREPROCESSING_FILTER_NONE`
`public final static Integer`	`PREPROCESSING_FILTER_SEGMENT_SMOOTH`
`public final static Integer`	`PREPROCESSING_FILTER_PSEUDO_RANDOM_DITHERING`
`private CompressionType`	`compressionType`
`private Integer`	`method`
`private Integer`	`targetSize`
`private Float`	`targetPSNR`
`private Integer`	`segments`
`private Integer`	`snsStrength`
`private Integer`	`filterStrength`
`private Integer`	`filterSharpness`
`private Integer`	`filterType`
`private Boolean`	`autoAdjustFilterStrength`
`private Integer`	`alphaCompressionAlgorithm`
`private Integer`	`alphaFiltering`
`private Integer`	`alphaQuality`
`private Integer`	`entropyAnalysisPassCount`
`private Boolean`	`showCompressed`
`private Integer`	`preprocessing`
`private Integer`	`partitions`
`private Integer`	`partitionLimit`
`private Boolean`	`emulateJpegSize`
`private Integer`	`threadLevel`
`private Boolean`	`lowMemory`
`private Integer`	`nearLossless`
`private Boolean`	`exact`
`private Boolean`	`useDeltaPalette`
`private Boolean`	`useSharpYUV`
`private Integer`	`qMin`
`private Integer`	`qMax`

Constructor Summary

Constructors
Constructor	Description
`WebPWriteParam(Locale locale)`

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`final CompressionType`	`getCompressionType()`
`final Unit`	`setCompressionType(CompressionType compressionType)`
`final Integer`	`getMethod()`	quality/speed trade-off (0=fast, 6=slower-better)
`final Unit`	`setMethod(Integer method)`	quality/speed trade-off (0=fast, 6=slower-better)
`final Integer`	`getTargetSize()`	if non-zero, set the desired target size in bytes.
`final Unit`	`setTargetSize(Integer targetSize)`	if non-zero, set the desired target size in bytes.
`final Float`	`getTargetPSNR()`	if non-zero, specifies the minimal distortion to try to achieve.
`final Unit`	`setTargetPSNR(Float targetPSNR)`	if non-zero, specifies the minimal distortion to try to achieve.
`final Integer`	`getSegments()`	maximum number of segments to use
`final Unit`	`setSegments(Integer segments)`	maximum number of segments to use
`final Integer`	`getSnsStrength()`	Spatial Noise Shaping.
`final Unit`	`setSnsStrength(Integer snsStrength)`	Spatial Noise Shaping.
`final Integer`	`getFilterStrength()`	range: 0 = off ..
`final Unit`	`setFilterStrength(Integer filterStrength)`	range: 0 = off ..
`final Integer`	`getFilterSharpness()`	range: 0 = off ..
`final Unit`	`setFilterSharpness(Integer filterSharpness)`	range: 0 = off ..
`final Integer`	`getFilterType()`	filtering type: 0 = simple, 1 = strong (only used if filter_strength 0 or autofilter 0)
`final Unit`	`setFilterType(Integer filterType)`	filtering type: 0 = simple, 1 = strong (only used if filter_strength 0 or autofilter 0)
`final Boolean`	`getAutoAdjustFilterStrength()`	Auto adjust filter's strength
`final Unit`	`setAutoAdjustFilterStrength(Boolean autoAdjustFilterStrength)`	Auto adjust filter's strength
`final Integer`	`getAlphaCompressionAlgorithm()`	Algorithm for encoding the alpha plane (0 = none, 1 = compressed with WebP lossless).
`final Unit`	`setAlphaCompressionAlgorithm(Integer alphaCompressionAlgorithm)`	Algorithm for encoding the alpha plane (0 = none, 1 = compressed with WebP lossless).
`final Integer`	`getAlphaFiltering()`	Predictive filtering method for alpha plane.
`final Unit`	`setAlphaFiltering(Integer alphaFiltering)`	Predictive filtering method for alpha plane.
`final Integer`	`getAlphaQuality()`	0: smallest size, 100: lossless.
`final Unit`	`setAlphaQuality(Integer alphaQuality)`	0: smallest size, 100: lossless.
`final Integer`	`getEntropyAnalysisPassCount()`	Number of entropy-analysis passes
`final Unit`	`setEntropyAnalysisPassCount(Integer entropyAnalysisPassCount)`	Number of entropy-analysis passes
`final Boolean`	`getShowCompressed()`	if true, export the compressed picture back.
`final Unit`	`setShowCompressed(Boolean showCompressed)`	if true, export the compressed picture back.
`final Integer`	`getPreprocessing()`	Preprocessing filter 0=none, 1=segment-smooth, 2=pseudo-random dithering
`final Unit`	`setPreprocessing(Integer preprocessing)`	Preprocessing filter 0=none, 1=segment-smooth, 2=pseudo-random dithering
`final Integer`	`getPartitions()`	log2(number of token partitions) in 0..
`final Unit`	`setPartitions(Integer partitions)`	log2(number of token partitions) in 0..
`final Integer`	`getPartitionLimit()`	Quality degradation allowed to fit the 512k limit on prediction modes coding 0: no degradation, 100: maximum possible degradation
`final Unit`	`setPartitionLimit(Integer partitionLimit)`	Quality degradation allowed to fit the 512k limit on prediction modes coding 0: no degradation, 100: maximum possible degradation
`final Boolean`	`getEmulateJpegSize()`	If true, compression parameters will be remapped to better match the expected output size from JPEG compression.
`final Unit`	`setEmulateJpegSize(Boolean emulateJpegSize)`	If true, compression parameters will be remapped to better match the expected output size from JPEG compression.
`final Integer`	`getThreadLevel()`	If non-zero, try and use multi-threaded encoding.
`final Unit`	`setThreadLevel(Integer threadLevel)`	If non-zero, try and use multi-threaded encoding.
`final Boolean`	`getLowMemory()`	If set, reduce memory usage (but increase CPU use).
`final Unit`	`setLowMemory(Boolean lowMemory)`	If set, reduce memory usage (but increase CPU use).
`final Integer`	`getNearLossless()`	Near lossless encoding 0 = max loss, 100 = off (default)
`final Unit`	`setNearLossless(Integer nearLossless)`	Near lossless encoding 0 = max loss, 100 = off (default)
`final Boolean`	`getExact()`	If non-zero, preserve the exact RGB values under transparent area.
`final Unit`	`setExact(Boolean exact)`	If non-zero, preserve the exact RGB values under transparent area.
`final Boolean`	`getUseDeltaPalette()`	reserved for future lossless feature
`final Unit`	`setUseDeltaPalette(Boolean useDeltaPalette)`	reserved for future lossless feature
`final Boolean`	`getUseSharpYUV()`	if needed, use sharp (and slow) RGB->YUV conversion
`final Unit`	`setUseSharpYUV(Boolean useSharpYUV)`	if needed, use sharp (and slow) RGB->YUV conversion
`final Integer`	`getQMin()`	minimum permissible quality factor
`final Unit`	`setQMin(Integer qMin)`	minimum permissible quality factor
`final Integer`	`getQMax()`	maximum permissible quality factor
`final Unit`	`setQMax(Integer qMax)`	maximum permissible quality factor
`Float`	`getCompressionQuality()`
`Unit`	`setCompressionQuality(Float quality)`	For lossy, 0f gives the smallest size and 1f the largest.
`Unit`	`setCompressionType(String compressionType)`
`Unit`	`unsetCompression()`

Methods inherited from class javax.imageio.IIOParam
activateController, getController, getDefaultController, getDestinationOffset, getDestinationType, getSourceBands, getSourceRegion, getSourceXSubsampling, getSourceYSubsampling, getSubsamplingXOffset, getSubsamplingYOffset, hasController, setController, setDestinationOffset, setDestinationType, setSourceBands, setSourceRegion, setSourceSubsampling
Methods inherited from class javax.imageio.ImageWriteParam
canOffsetTiles, canWriteCompressed, canWriteProgressive, canWriteTiles, getBitRate, getCompressionMode, getCompressionQualityDescriptions, getCompressionQualityValues, getCompressionType, getCompressionTypes, getLocale, getLocalizedCompressionTypeName, getPreferredTileSizes, getProgressiveMode, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, getTilingMode, isCompressionLossless, setCompressionMode, setProgressiveMode, setTiling, setTilingMode, unsetTiling
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - WebPWriteParam
```
WebPWriteParam(Locale locale)
```
- Method Detail
  - getCompressionType
```
 final CompressionType getCompressionType()
```
  - setCompressionType
```
 final Unit setCompressionType(CompressionType compressionType)
```
  - getMethod
```
 final Integer getMethod()
```
    quality/speed trade-off (0=fast, 6=slower-better)
  - setMethod
```
 final Unit setMethod(Integer method)
```
    quality/speed trade-off (0=fast, 6=slower-better)
  - getTargetSize
```
 final Integer getTargetSize()
```
    if non-zero, set the desired target size in bytes. Takes precedence over the @.setCompressionQuality parameter.
  - setTargetSize
```
 final Unit setTargetSize(Integer targetSize)
```
    if non-zero, set the desired target size in bytes. Takes precedence over the @.setCompressionQuality parameter.
  - getTargetPSNR
```
 final Float getTargetPSNR()
```
    if non-zero, specifies the minimal distortion to try to achieve. Takes precedence over .setTargetSize.
  - setTargetPSNR
```
 final Unit setTargetPSNR(Float targetPSNR)
```
    if non-zero, specifies the minimal distortion to try to achieve. Takes precedence over .setTargetSize.
  - getSegments
```
 final Integer getSegments()
```
    maximum number of segments to use
  - setSegments
```
 final Unit setSegments(Integer segments)
```
    maximum number of segments to use
  - getSnsStrength
```
 final Integer getSnsStrength()
```
    Spatial Noise Shaping. 0=off, 100=maximum.
  - setSnsStrength
```
 final Unit setSnsStrength(Integer snsStrength)
```
    Spatial Noise Shaping. 0=off, 100=maximum.
  - getFilterStrength
```
 final Integer getFilterStrength()
```
    range: 0 = off .. 100 = strongest
  - setFilterStrength
```
 final Unit setFilterStrength(Integer filterStrength)
```
    range: 0 = off .. 100 = strongest
  - getFilterSharpness
```
 final Integer getFilterSharpness()
```
    range: 0 = off .. 7 = least sharp
  - setFilterSharpness
```
 final Unit setFilterSharpness(Integer filterSharpness)
```
    range: 0 = off .. 7 = least sharp
  - getFilterType
```
 final Integer getFilterType()
```
    filtering type: 0 = simple, 1 = strong (only used if filter_strength 0 or autofilter 0)
  - setFilterType
```
 final Unit setFilterType(Integer filterType)
```
    filtering type: 0 = simple, 1 = strong (only used if filter_strength 0 or autofilter 0)
  - getAutoAdjustFilterStrength
```
 final Boolean getAutoAdjustFilterStrength()
```
    Auto adjust filter's strength
  - setAutoAdjustFilterStrength
```
 final Unit setAutoAdjustFilterStrength(Boolean autoAdjustFilterStrength)
```
    Auto adjust filter's strength
  - getAlphaCompressionAlgorithm
```
 final Integer getAlphaCompressionAlgorithm()
```
    Algorithm for encoding the alpha plane (0 = none, 1 = compressed with WebP lossless). Default is 1.
  - setAlphaCompressionAlgorithm
```
 final Unit setAlphaCompressionAlgorithm(Integer alphaCompressionAlgorithm)
```
    Algorithm for encoding the alpha plane (0 = none, 1 = compressed with WebP lossless). Default is 1.
  - getAlphaFiltering
```
 final Integer getAlphaFiltering()
```
    Predictive filtering method for alpha plane. 0: none, 1: fast, 2: best. Default if 1.
  - setAlphaFiltering
```
 final Unit setAlphaFiltering(Integer alphaFiltering)
```
    Predictive filtering method for alpha plane. 0: none, 1: fast, 2: best. Default if 1.
  - getAlphaQuality
```
 final Integer getAlphaQuality()
```
    0: smallest size, 100: lossless. Default is 100.
  - setAlphaQuality
```
 final Unit setAlphaQuality(Integer alphaQuality)
```
    0: smallest size, 100: lossless. Default is 100.
  - getEntropyAnalysisPassCount
```
 final Integer getEntropyAnalysisPassCount()
```
    Number of entropy-analysis passes
  - setEntropyAnalysisPassCount
```
 final Unit setEntropyAnalysisPassCount(Integer entropyAnalysisPassCount)
```
    Number of entropy-analysis passes
  - getShowCompressed
```
 final Boolean getShowCompressed()
```
    if true, export the compressed picture back. In-loop filtering is not applied.
  - setShowCompressed
```
 final Unit setShowCompressed(Boolean showCompressed)
```
    if true, export the compressed picture back. In-loop filtering is not applied.
  - getPreprocessing
```
 final Integer getPreprocessing()
```
    Preprocessing filter 0=none, 1=segment-smooth, 2=pseudo-random dithering
  - setPreprocessing
```
 final Unit setPreprocessing(Integer preprocessing)
```
    Preprocessing filter 0=none, 1=segment-smooth, 2=pseudo-random dithering
  - getPartitions
```
 final Integer getPartitions()
```
    log2(number of token partitions) in 0..3. Default is set to 0 for easier progressive decoding.
  - setPartitions
```
 final Unit setPartitions(Integer partitions)
```
    log2(number of token partitions) in 0..3. Default is set to 0 for easier progressive decoding.
  - getPartitionLimit
```
 final Integer getPartitionLimit()
```
    Quality degradation allowed to fit the 512k limit on prediction modes coding 0: no degradation, 100: maximum possible degradation
  - setPartitionLimit
```
 final Unit setPartitionLimit(Integer partitionLimit)
```
    Quality degradation allowed to fit the 512k limit on prediction modes coding 0: no degradation, 100: maximum possible degradation
  - getEmulateJpegSize
```
 final Boolean getEmulateJpegSize()
```
    If true, compression parameters will be remapped to better match the expected output size from JPEG compression. Generally, the output size will be similar but the degradation will be lower.
  - setEmulateJpegSize
```
 final Unit setEmulateJpegSize(Boolean emulateJpegSize)
```
    If true, compression parameters will be remapped to better match the expected output size from JPEG compression. Generally, the output size will be similar but the degradation will be lower.
  - getThreadLevel
```
 final Integer getThreadLevel()
```
    If non-zero, try and use multi-threaded encoding.
  - setThreadLevel
```
 final Unit setThreadLevel(Integer threadLevel)
```
    If non-zero, try and use multi-threaded encoding.
  - getLowMemory
```
 final Boolean getLowMemory()
```
    If set, reduce memory usage (but increase CPU use).
  - setLowMemory
```
 final Unit setLowMemory(Boolean lowMemory)
```
    If set, reduce memory usage (but increase CPU use).
  - getNearLossless
```
 final Integer getNearLossless()
```
    Near lossless encoding 0 = max loss, 100 = off (default)
  - setNearLossless
```
 final Unit setNearLossless(Integer nearLossless)
```
    Near lossless encoding 0 = max loss, 100 = off (default)
  - getExact
```
 final Boolean getExact()
```
    If non-zero, preserve the exact RGB values under transparent area. Otherwise, discard this invisible RGB information for better compression. The default value is false.
  - setExact
```
 final Unit setExact(Boolean exact)
```
    If non-zero, preserve the exact RGB values under transparent area. Otherwise, discard this invisible RGB information for better compression. The default value is false.
  - getUseDeltaPalette
```
 final Boolean getUseDeltaPalette()
```
    reserved for future lossless feature
  - setUseDeltaPalette
```
 final Unit setUseDeltaPalette(Boolean useDeltaPalette)
```
    reserved for future lossless feature
  - getUseSharpYUV
```
 final Boolean getUseSharpYUV()
```
    if needed, use sharp (and slow) RGB->YUV conversion
  - setUseSharpYUV
```
 final Unit setUseSharpYUV(Boolean useSharpYUV)
```
    if needed, use sharp (and slow) RGB->YUV conversion
  - getQMin
```
 final Integer getQMin()
```
    minimum permissible quality factor
  - setQMin
```
 final Unit setQMin(Integer qMin)
```
    minimum permissible quality factor
  - getQMax
```
 final Integer getQMax()
```
    maximum permissible quality factor
  - setQMax
```
 final Unit setQMax(Integer qMax)
```
    maximum permissible quality factor
  - getCompressionQuality
```
 Float getCompressionQuality()
```
  - setCompressionQuality
```
 Unit setCompressionQuality(Float quality)
```
    For lossy, 0f gives the smallest size and 1f the largest. For lossless, this parameter is the amount of effort put into the compression: 0f is the fastest but gives larger files compared to the slowest, but best, 1f.
  - setCompressionType
```
 Unit setCompressionType(String compressionType)
```
  - unsetCompression
```
 Unit unsetCompression()
```

Class WebPWriteParam

Nested Class Summary

Field Summary

Constructor Summary

Enum Constant Summary

Method Summary

Methods inherited from class javax.imageio.IIOParam

Methods inherited from class javax.imageio.ImageWriteParam

Methods inherited from class java.lang.Object

Constructor Detail

WebPWriteParam

Method Detail

getCompressionType

setCompressionType

getMethod

setMethod

getTargetSize

setTargetSize

getTargetPSNR

setTargetPSNR

getSegments

setSegments

getSnsStrength

setSnsStrength

getFilterStrength

setFilterStrength

getFilterSharpness

setFilterSharpness

getFilterType

setFilterType

getAutoAdjustFilterStrength

setAutoAdjustFilterStrength

getAlphaCompressionAlgorithm

setAlphaCompressionAlgorithm

getAlphaFiltering

setAlphaFiltering

getAlphaQuality

setAlphaQuality

getEntropyAnalysisPassCount

setEntropyAnalysisPassCount

getShowCompressed

setShowCompressed

getPreprocessing

setPreprocessing

getPartitions

setPartitions

getPartitionLimit

setPartitionLimit

getEmulateJpegSize

setEmulateJpegSize

getThreadLevel

setThreadLevel

getLowMemory

setLowMemory

getNearLossless

setNearLossless

getExact

setExact

getUseDeltaPalette

setUseDeltaPalette

getUseSharpYUV

setUseSharpYUV

getQMin

setQMin

getQMax

setQMax

getCompressionQuality

setCompressionQuality

setCompressionType

unsetCompression