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java.lang.Object javax.media.jai.OperationDescriptorImpl javax.media.jai.operator.OrConstDescriptor
An OperationDescriptor
describing the "OrConst" operation.
The Or operation takes one rendered or renderable image and an array of integer constants, and performs a bit-wise logical "or" between every pixel in the same band of the source and the constant from the corresponding array entry. If the number of constants supplied is less than the number of bands of the destination, then the constant from entry 0 is applied to all the bands. Otherwise, a constant from a different entry is applied to each band.
The source image must have an integral data type. By default, the destination image bound, data type, and number of bands are the same as the source image.
The following matrix defines the logical "or" operation.
src | const | Result |
---|---|---|
0 | 0 | 0 |
0 | 1 | 1 |
1 | 0 | 1 |
1 | 1 | 1 |
The destination pixel values are defined by the pseudocode:
if (constants.length < dstNumBands) { dst[x][y][b] = src[x][y][b] | constants[0]; } else { dst[x][y][b] = src[x][y][b] | constants[b]; }
Name | Value |
---|---|
GlobalName | OrConst |
LocalName | OrConst |
Vendor | com.sun.media.jai |
Description | Logically "ors" an image with constants. |
DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/OrConstDescriptor.html |
Version | 1.0 |
arg0Desc | The constants to logically "or" with. |
Name | Class Type | Default Value |
---|---|---|
constants | int[] | {0} |
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 | |
OrConstDescriptor()
Constructor. |
Method Summary | |
static RenderedOp |
create(RenderedImage source0,
int[] constants,
RenderingHints hints)
Logically "ors" an image with constants. |
static RenderableOp |
createRenderable(RenderableImage source0,
int[] constants,
RenderingHints hints)
Logically "ors" an image with constants. |
boolean |
validateArguments(String modeName,
ParameterBlock args,
StringBuffer message)
Validates the input source and parameter. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public OrConstDescriptor()
Method Detail |
public boolean validateArguments(String modeName, ParameterBlock args, StringBuffer message)
In addition to the standard checks performed by the superclass method, this method checks that the source image has an integral data type and that "constants" has length at least 1.
validateArguments
in interface OperationDescriptor
validateArguments
in class OperationDescriptorImpl
modeName
- the operation mode nameargs
- Input arguments, including source(s) and/or parameter(s).message
- 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, int[] constants, RenderingHints hints)
Creates a ParameterBlockJAI
from all
supplied arguments except hints
and invokes
JAI.create(String,ParameterBlock,RenderingHints)
.
source0
- RenderedImage
source 0.constants
- The constants to logically "or" with.
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, int[] constants, RenderingHints hints)
Creates a ParameterBlockJAI
from all
supplied arguments except hints
and invokes
JAI.createRenderable(String,ParameterBlock,RenderingHints)
.
source0
- RenderableImage
source 0.constants
- The constants to logically "or" with.
May be null
.hints
- The RenderingHints
to use.
May be null
.
RenderableOp
destination.
IllegalArgumentException
- if source0
is null
.JAI
,
ParameterBlockJAI
,
RenderableOp
|
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