|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectjavax.media.jai.OperationDescriptorImpl
javax.media.jai.operator.MatchCDFDescriptor
public class MatchCDFDescriptor
An OperationDescriptor
describing the "MatchCDF" operation.
The "MatchCDF" operation performs a piecewise linear mapping of the pixel values of an image such that the Cumulative Distribution Function (CDF) of the destination image matches as closely as possible a specified Cumulative Distribution Function. The desired CDF is described by an array of the form
float CDF[numBands][numBins[b]]where
numBins[b]denotes the number of bins in the histogram of the source image for band b. Each element in the array
CDF[b]must be non-negative, the array must represent a non- decreasing sequence, and the last element of the array must be 1.0F. The source image must have a
Histogram
object available via
its getProperty()
method.
Name | Value |
---|---|
GlobalName | MatchCDF |
LocalName | MatchCDF |
Vendor | com.sun.media.jai |
Description | Matches pixel values to a supplied CDF. |
DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/MatchCDFDescriptor.html |
Version | 1.0 |
arg0Desc | The desired Cumulative Distribution Function. |
Name | Class Type | Default Value |
---|---|---|
CDF | float[][] | CDF for histogram equalization |
DataBuffer
,
ImageLayout
,
OperationDescriptor
,
Serialized FormField Summary |
---|
Fields inherited from class javax.media.jai.OperationDescriptorImpl |
---|
sourceNames |
Fields inherited from interface javax.media.jai.OperationDescriptor |
---|
NO_PARAMETER_DEFAULT |
Constructor Summary | |
---|---|
MatchCDFDescriptor()
Constructor. |
Method Summary | |
---|---|
static RenderedOp |
create(RenderedImage source0,
float[][] CDF,
RenderingHints hints)
Matches pixel values to a supplied CDF. |
static RenderableOp |
createRenderable(RenderableImage source0,
float[][] CDF,
RenderingHints hints)
Matches pixel values to a supplied CDF. |
boolean |
validateArguments(String modeName,
ParameterBlock args,
StringBuffer msg)
Validates the input sources and parameter. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
public MatchCDFDescriptor()
Method Detail |
---|
public boolean validateArguments(String modeName, ParameterBlock args, StringBuffer msg)
In addition to the standard checks performed by the superclass method, this method checks that the source image contains a "histogram" property and that the "CDF" array is appropriate for it.
validateArguments
in interface OperationDescriptor
validateArguments
in class OperationDescriptorImpl
modeName
- the operation mode nameargs
- Input arguments, including source(s) and/or parameter(s).msg
- A string that may contain error messages.OperationDescriptorImpl.validateSources(java.lang.String, java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)
,
OperationDescriptorImpl.validateParameters(java.lang.String, java.awt.image.renderable.ParameterBlock, java.lang.StringBuffer)
public static RenderedOp create(RenderedImage source0, float[][] CDF, RenderingHints hints)
Creates a ParameterBlockJAI
from all
supplied arguments except hints
and invokes
JAI.create(String,ParameterBlock,RenderingHints)
.
source0
- RenderedImage
source 0.CDF
- The desired Cumulative Distribution Function.
May be null
.hints
- The RenderingHints
to use.
May be null
.
RenderedOp
destination.
IllegalArgumentException
- if source0
is null
.JAI
,
ParameterBlockJAI
,
RenderedOp
public static RenderableOp createRenderable(RenderableImage source0, float[][] CDF, RenderingHints hints)
Creates a ParameterBlockJAI
from all
supplied arguments except hints
and invokes
JAI.createRenderable(String,ParameterBlock,RenderingHints)
.
source0
- RenderableImage
source 0.CDF
- The desired Cumulative Distribution Function.
May be null
.hints
- The RenderingHints
to use.
May be null
.
RenderableOp
destination.
IllegalArgumentException
- if source0
is null
.JAI
,
ParameterBlockJAI
,
RenderableOp
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |