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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » ca.forklabs.media.jai.operator

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Class Diagram

Java Document (Java Doc)

ca.forklabs.media.jai .CollectionDescriptor

ca.forklabs.media.jai.operator .SpectralFilterDescriptor

SpectralFilterDescriptor

public class SpectralFilterDescriptor extends CollectionDescriptor (Code)

Class SpectralFilterDescriptor is an OperationDescriptor describing the spectralfilter operation. This composite operation consists of these four steps :

format -> fft -> filter -> ifft ->

The spectralfilter operation takes two parameters, the filter and the data type for the format operation :

filter: This argument will provide the filter image to multiply to the Fourier transform.
data type: This argument is the type for the format operation. Data format can be found in enum FormatDataType . The default value is FormatDataType.FLOAT .

Here is a description of each step :

format: The format step change the type of the image pixel. Its behaviour can be controlled with the data type parameter.
fft: This step calculates the Fourier Transform, using no scaling.
filter: The filter image will be generated and multiplied to the Fourier transform.
ifft: This step calculates the Inverse Fourier Transform, using the dimension scaling.

Resource List
Name Value

GlobalName SpectralFilter

LocalName SpectralFilter

Vendor ca.umontreal.iro.image.arcticice

Description Spectral Filter

DocURL n/a

Version $Version$

Arg0Desct The spectral filter

Arg1Desct The data type for the format operation

Parameter List for the rendered and renderable modes
Name Class Type Default Value

filter SpectralFilter2D NO_PARAMETER_DEFAULT
type FormatDataType FormatDataType.FLOAT

Parameter List for the collection mode
Name Class Type Default Value

filter SpectralFilter3D NO_PARAMETER_DEFAULT
type FormatDataType FormatDataType.FLOAT

author:
Daniel L�onard
version:
$Revision: 1.1 $

Inner Class :protected static class SpectralHomomorphicParameterListDescriptor extends CollectionDescriptor.EmptyParameterListDescriptor

Field Summary
final public static int	FILTER_PARAMETER_INDEX The index in the parameter block of the filter parameter.
final public static String	FILTER_PARAMETER_NAME The name of the filter parameter.
final public static String	NAME The name of this operator.
final public static int	TYPE_PARAMETER_INDEX The index in the parameter block of the data type parameter.
final public static String	TYPE_PARAMETER_NAME The name of the initial format type parameter.

Constructor Summary
public	SpectralFilterDescriptor() Constructor.

Method Summary
public static RenderedOp	create(RenderedImage source, SpectralFilter2D filter, FormatDataType type, RenderingHints hints) Performs the spatial homomorphic filter operation on a rendered image. Parameters: source - the image to enhance. Parameters: filter - the filter. Parameters: type - the data type for the initial format. Parameters: hints - the rendering hints, may be null .
public static CollectionImage	createCollection(CollectionImage source, SpectralFilter3D filter, FormatDataType type, RenderingHints hints) Performs the spatial homomorphic filter operation on a rendered image. Parameters: source - the image to enhance. Parameters: filter - the filter. Parameters: type - the data type for the initial format. Parameters: hints - the rendering hints, may be null .
public static ParameterBlockJAI	createParameterBlock(String mode, Object source, SpectralFilter2D filter, FormatDataType type) Creates and fills a new parameter block. Parameters: mode - the rendering mode (usually rendered or renderable). Parameters: source - the source image. Parameters: filter - the filter Parameters: type - the data type for the format operation.
public static ParameterBlockJAI	createParameterBlock(String mode, Object source, SpectralFilter3D filter, FormatDataType type) Creates and fills a new parameter block. Parameters: mode - the rendering mode (usually collection). Parameters: source - the source image. Parameters: filter - the filter Parameters: type - the data type for the format operation.
public static ParameterBlockJAI	createParameterBlock(RenderedImage source, SpectralFilter2D filter, FormatDataType type) Creates and fills a new parameter block for the rendered mode. Parameters: source - the source image. Parameters: filter - the filter. Parameters: type - the data type for the format operation.
public static ParameterBlockJAI	createParameterBlock(RenderableImage source, SpectralFilter2D filter, FormatDataType type) Creates and fills a new parameter block for the renderable mode. Parameters: source - the source image. Parameters: filter - the filter. Parameters: type - the data type for the format operation.
public static ParameterBlockJAI	createParameterBlock(CollectionImage source, SpectralFilter3D filter, FormatDataType type) Creates and fills a new parameter block for the collection mode. Parameters: source - the source image. Parameters: filter - the filter. Parameters: type - the data type for the format operation.
public static RenderableOp	createRenderable(RenderableImage source, SpectralFilter2D filter, FormatDataType type, RenderingHints hints) Performs the spatial homomorphic filter operation on a renderable image. Parameters: source - the image to enhance. Parameters: filter - the filter. Parameters: type - the data type for the initial format. Parameters: hints - the rendering hints, may be null .
protected static String	getArg0Description() Gets the description for the first argument, spectral filter.
protected static String	getArg1Description() Gets the description for the second argument, the format data type.
protected static String	getDescription() Gets the description of this operation.

Field Detail

FILTER_PARAMETER_INDEX
final public static int FILTER_PARAMETER_INDEX(Code)
	The index in the parameter block of the filter parameter.

FILTER_PARAMETER_NAME
final public static String FILTER_PARAMETER_NAME(Code)
	The name of the filter parameter.

NAME
final public static String NAME(Code)
	The name of this operator.

TYPE_PARAMETER_INDEX
final public static int TYPE_PARAMETER_INDEX(Code)
	The index in the parameter block of the data type parameter.

TYPE_PARAMETER_NAME
final public static String TYPE_PARAMETER_NAME(Code)
	The name of the initial format type parameter.

Constructor Detail

SpectralFilterDescriptor
public SpectralFilterDescriptor()(Code)
	Constructor.

Method Detail

create
public static RenderedOp create(RenderedImage source, SpectralFilter2D filter, FormatDataType type, RenderingHints hints)(Code)
	Performs the spatial homomorphic filter operation on a rendered image. Parameters: source - the image to enhance. Parameters: filter - the filter. Parameters: type - the data type for the initial format. Parameters: hints - the rendering hints, may be null . the rendered result image.

createCollection
public static CollectionImage createCollection(CollectionImage source, SpectralFilter3D filter, FormatDataType type, RenderingHints hints)(Code)
	Performs the spatial homomorphic filter operation on a rendered image. Parameters: source - the image to enhance. Parameters: filter - the filter. Parameters: type - the data type for the initial format. Parameters: hints - the rendering hints, may be null . the rendered result image.

createParameterBlock
public static ParameterBlockJAI createParameterBlock(String mode, Object source, SpectralFilter2D filter, FormatDataType type)(Code)
	Creates and fills a new parameter block. Parameters: mode - the rendering mode (usually rendered or renderable). Parameters: source - the source image. Parameters: filter - the filter Parameters: type - the data type for the format operation. a new parameter block.

createParameterBlock
public static ParameterBlockJAI createParameterBlock(String mode, Object source, SpectralFilter3D filter, FormatDataType type)(Code)
	Creates and fills a new parameter block. Parameters: mode - the rendering mode (usually collection). Parameters: source - the source image. Parameters: filter - the filter Parameters: type - the data type for the format operation. a new parameter block.

createParameterBlock
public static ParameterBlockJAI createParameterBlock(RenderedImage source, SpectralFilter2D filter, FormatDataType type)(Code)
	Creates and fills a new parameter block for the rendered mode. Parameters: source - the source image. Parameters: filter - the filter. Parameters: type - the data type for the format operation. a new parameter block.

createParameterBlock
public static ParameterBlockJAI createParameterBlock(RenderableImage source, SpectralFilter2D filter, FormatDataType type)(Code)
	Creates and fills a new parameter block for the renderable mode. Parameters: source - the source image. Parameters: filter - the filter. Parameters: type - the data type for the format operation. a new parameter block.

createParameterBlock
public static ParameterBlockJAI createParameterBlock(CollectionImage source, SpectralFilter3D filter, FormatDataType type)(Code)
	Creates and fills a new parameter block for the collection mode. Parameters: source - the source image. Parameters: filter - the filter. Parameters: type - the data type for the format operation. a new parameter block.

createRenderable
public static RenderableOp createRenderable(RenderableImage source, SpectralFilter2D filter, FormatDataType type, RenderingHints hints)(Code)
	Performs the spatial homomorphic filter operation on a renderable image. Parameters: source - the image to enhance. Parameters: filter - the filter. Parameters: type - the data type for the initial format. Parameters: hints - the rendering hints, may be null . the rendered result image.

getArg0Description
protected static String getArg0Description()(Code)
	Gets the description for the first argument, spectral filter. the description message.

getArg1Description
protected static String getArg1Description()(Code)
	Gets the description for the second argument, the format data type. the description message.

getDescription
protected static String getDescription()(Code)
	Gets the description of this operation. the description message.

Methods inherited from ca.forklabs.media.jai.CollectionDescriptor

protected String getNeitherCollectionNorRenderableCollectionModeErrorMessage(String mode)(Code)(Java Doc)
protected static String getNoEnumeratedParametersErrorMessage()(Code)(Java Doc)
protected String getNotAllRenderableErrorMessage()(Code)(Java Doc)
protected String getNotAllRenderedErrorMessage()(Code)(Java Doc)
protected static String getUnknownParameterErrorMessage(String name)(Code)(Java Doc)
protected boolean validateSources(String mode, ParameterBlock pb, StringBuffer sb)(Code)(Java Doc)

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