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java.lang.Object | +--javax.media.jai.OperationDescriptorImpl | +--javax.media.jai.operator.MinDescriptor
An OperationDescriptor
describing the "Min" operation.
The Min operation takes two rendered or renderable images, and for every pair of pixels, one from each source image of the corresponding position and band, finds the minimum pixel value. No additional parameters are required.
The two sources may have different number of bands and/or data types. By default, the destination image bound is the intersection of the two source image bounds. If the two sources don't intersect, the destination will have a width and a height of 0. The number of bands of the destination image is the same as the least number of bands of the sources, and the data type is the biggest data type of the sources.
The destination pixel values are defined by the pseudocode:
if (srcs[0][x][y][b] < srcs[1][x][y][b]) { dst[x][y][b] = srcs[0][x][y][b]; } else { dst[x][y][b] = srcs[1][x][y][b]; }
Name | Value |
---|---|
GlobalName | Min |
LocalName | Min |
Vendor | com.sun.media.jai |
Description | Computes the pixel-wise minimum of two images. |
DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/MinDescriptor.html |
Version | 1.0 |
No parameters are needed for this 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 | |
MinDescriptor()
Constructor. |
Method Summary | |
static RenderedOp |
create(RenderedImage source0,
RenderedImage source1,
RenderingHints hints)
Computes the pixel-wise minimum of two images. |
static RenderableOp |
createRenderable(RenderableImage source0,
RenderableImage source1,
RenderingHints hints)
Computes the pixel-wise minimum of two images. |
boolean |
isRenderableSupported()
Returns true since renderable operation is supported. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public MinDescriptor()
Method Detail |
public boolean isRenderableSupported()
true
since renderable operation is supported.isRenderableSupported
in class OperationDescriptorImpl
javax.media.jai.OperationDescriptorImpl
OperationDescriptorImpl.isModeSupported(java.lang.String)
public static RenderedOp create(RenderedImage source0, RenderedImage source1, RenderingHints hints)
Creates a ParameterBlockJAI
from all
supplied arguments except hints
and invokes
JAI.create(String,ParameterBlock,RenderingHints)
.
source0
- RenderedImage
source 0.source1
- RenderedImage
source 1.hints
- The RenderingHints
to use.
May be null
.RenderedOp
destination.IllegalArgumentException
- if source0
is null
.IllegalArgumentException
- if source1
is null
.JAI
,
ParameterBlockJAI
,
RenderedOp
public static RenderableOp createRenderable(RenderableImage source0, RenderableImage source1, RenderingHints hints)
Creates a ParameterBlockJAI
from all
supplied arguments except hints
and invokes
JAI.createRenderable(String,ParameterBlock,RenderingHints)
.
source0
- RenderableImage
source 0.source1
- RenderableImage
source 1.hints
- The RenderingHints
to use.
May be null
.RenderableOp
destination.IllegalArgumentException
- if source0
is null
.IllegalArgumentException
- if source1
is null
.JAI
,
ParameterBlockJAI
,
RenderableOp
|
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