javax.media.jai.operator
Class MinDescriptor

java.lang.Object
  |
  +--javax.media.jai.OperationDescriptorImpl
        |
        +--javax.media.jai.operator.MinDescriptor

All Implemented Interfaces:

OperationDescriptor, RegistryElementDescriptor, Serializable

public class MinDescriptor

extends OperationDescriptorImpl

An OperationDescriptor describing the "Min" operation.

The Min operation takes two rendered 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];
 }
 

Resource List

Name	Value
GlobalName	Min
LocalName	Min
Vendor	com.sun.media.jai
Description	Computes the pixel-wise minimum of two rendered 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.

See Also:

OperationDescriptor, Serialized Form

Fields inherited from class javax.media.jai.OperationDescriptorImpl

resources, sourceNames, supportedModes

Constructor Summary

MinDescriptor()
Constructor.

Method Summary

boolean

isRenderableSupported() Returns true since renderable operation is supported.

Methods inherited from class javax.media.jai.OperationDescriptorImpl

arePropertiesSupported, getDefaultSourceClass, getDestClass, getDestClass, getInvalidRegion, getName, getNumParameters, getNumSources, getParamClasses, getParamDefaults, getParamDefaultValue, getParameterListDescriptor, getParamMaxValue, getParamMinValue, getParamNames, getPropertyGenerators, getPropertyGenerators, getRenderableDestClass, getRenderableSourceClasses, getResourceBundle, getResources, getSourceClasses, getSourceClasses, getSourceNames, getSupportedModes, isImmediate, isModeSupported, isRenderedSupported, makeDefaultSourceClassList, validateArguments, validateArguments, validateParameters, validateParameters, validateRenderableArguments, validateRenderableSources, validateSources, validateSources

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MinDescriptor

public MinDescriptor()

Constructor.

Method Detail

isRenderableSupported

public boolean isRenderableSupported()

Returns true since renderable operation is supported.

Overrides:

isRenderableSupported in class OperationDescriptorImpl

Tags copied from class: OperationDescriptorImpl

See Also:

OperationDescriptorImpl.isModeSupported(java.lang.String)