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java.lang.Object | +--javax.media.jai.OperationDescriptorImpl | +--javax.media.jai.operator.ConjugateDescriptor
An OperationDescriptor
describing the "Conjugate" operation.
The Conjugate operation negates the imaginary components of pixel values of a rendered or renderable source image containing complex data. The source image must contain an even number of bands with the even-indexed bands (0, 2, ...) representing the real and the odd-indexed bands (1, 3, ...) the imaginary parts of each pixel. The destination image similarly contains an even number of bands with the same interpretation and with contents defined by:
dst[x][y][2*k] = src[x][y][2*k]; dst[x][y][2*k+1] = -src[x][y][2*k+1];where the index k varies from zero to one less than the number of complex components in the destination image.
"Conjugate" defines a PropertyGenerator that sets the "COMPLEX"
property of the image to java.lang.Boolean.TRUE
, which may
be retrieved by calling the getProperty()
method with
"COMPLEX" as the property name.
Name | Value |
---|---|
GlobalName | Conjugate |
LocalName | Conjugate |
Vendor | com.sun.media.jai |
Description | Computes the complex conjugate of a complex image. |
DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/ConjugateDescriptor.html |
Version | 1.0 |
No parameters are needed for the "Conjugate" operation.
OperationDescriptor
, Serialized FormFields inherited from class javax.media.jai.OperationDescriptorImpl |
resources, sourceNames, supportedModes |
Fields inherited from interface javax.media.jai.OperationDescriptor |
NO_PARAMETER_DEFAULT |
Constructor Summary | |
ConjugateDescriptor()
Constructor. |
Method Summary | |
static RenderedOp |
create(RenderedImage source0,
RenderingHints hints)
Computes the complex conjugate of a complex image. |
static RenderableOp |
createRenderable(RenderableImage source0,
RenderingHints hints)
Computes the complex conjugate of a complex image. |
PropertyGenerator[] |
getPropertyGenerators(String modeName)
Returns an array of PropertyGenerators implementing
property inheritance for the "Conjugate" operation. |
protected boolean |
validateSources(String modeName,
ParameterBlock args,
StringBuffer msg)
Validates the input sources. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public ConjugateDescriptor()
Method Detail |
public PropertyGenerator[] getPropertyGenerators(String modeName)
PropertyGenerators
implementing
property inheritance for the "Conjugate" operation.getPropertyGenerators
in class OperationDescriptorImpl
protected boolean validateSources(String modeName, ParameterBlock args, StringBuffer msg)
In addition to the standard checks performed by the superclass method, this method checks that the source image has an even number of bands.
validateSources
in class OperationDescriptorImpl
javax.media.jai.OperationDescriptorImpl
modeName
- the operation mode nameargs
- a ParameterBlock
that has the sourcesmsg
- A string that may contain error messages.IllegalArgumentException
- if any of the input parameters are null
.OperationDescriptorImpl.validateArguments(java.lang.String, java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)
public static RenderedOp create(RenderedImage source0, RenderingHints hints)
Creates a ParameterBlockJAI
from all
supplied arguments except hints
and invokes
JAI.create(String,ParameterBlock,RenderingHints)
.
source0
- RenderedImage
source 0.hints
- The RenderingHints
to use.
May be null
.RenderedOp
destination.IllegalArgumentException
- if source0
is null
.JAI
,
ParameterBlockJAI
,
RenderedOp
public static RenderableOp createRenderable(RenderableImage source0, RenderingHints hints)
Creates a ParameterBlockJAI
from all
supplied arguments except hints
and invokes
JAI.createRenderable(String,ParameterBlock,RenderingHints)
.
source0
- RenderableImage
source 0.hints
- The RenderingHints
to use.
May be null
.RenderableOp
destination.IllegalArgumentException
- if source0
is null
.JAI
,
ParameterBlockJAI
,
RenderableOp
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