| java.lang.Object
 javax.media.jai.OperationDescriptorImpl
javax.media.jai.operator.MagnitudeDescriptor
| MagnitudeDescriptor | | public class MagnitudeDescriptor extends OperationDescriptorImpl (Code) | | An OperationDescriptor describing the "Magnitude" operation.
The "Magnitude" operation computes the magnitude of each pixel of a
complex image. The source image must have an even number of bands, with
the even bands (0, 2, ...) representing the real parts and the odd bands
(1, 3, ...) the imaginary parts of each complex pixel. The destination
image has at most half the number of bands of the source image with each
sample in a pixel representing the magnitude of the corresponding complex
source sample. The magnitude values of the destination image are defined
for a given sample by the pseudocode:
dstPixel[x][y][b] = sqrt(src[x][y][2*b]^2 + src[x][y][2*b + 1]^2)
where the number of bands b varies from zero to one less than the
number of bands in the destination image.
For integral image datatypes, the result will be rounded and clamped
as needed.
"Magnitude" defines a PropertyGenerator that sets the "COMPLEX"
property of the image to java.lang.Boolean.FALSE, which may
be retrieved by calling the getProperty() method with
"COMPLEX" as the property name.
Resource List
| Name | Value |
|---|
| GlobalName | Magnitude |
| LocalName | Magnitude |
| Vendor | com.sun.media.jai |
| Description | Find the magnitude of each pixel of
an image. |
| DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/MagnitudeDescriptor.html |
| Version | 1.0 |
No parameters are needed for the "Magnitude" operation.
See Also: javax.media.jai.OperationDescriptor |
| MagnitudeDescriptor | | public MagnitudeDescriptor()(Code) | | Constructor.
|
| getPropertyGenerators | | public PropertyGenerator[] getPropertyGenerators(String modeName)(Code) | | Returns an array of PropertyGenerators implementing
property inheritance for the "Magnitude" operation.
An array of property generators. |
| validateSources | | protected boolean validateSources(String modeName, ParameterBlock args, StringBuffer msg)(Code) | | Validates the input source.
In addition to the standard checks performed by the
superclass method, this method checks that the source image
has an even number of bands.
|
| Methods inherited from javax.media.jai.OperationDescriptorImpl | public boolean arePropertiesSupported()(Code)(Java Doc)
protected static Class getDefaultSourceClass(String modeName)(Code)(Java Doc)
public Class getDestClass(String modeName)(Code)(Java Doc)
public Class getDestClass()(Code)(Java Doc)
public Object getInvalidRegion(String modeName, ParameterBlock oldParamBlock, RenderingHints oldHints, ParameterBlock newParamBlock, RenderingHints newHints, OperationNode node)(Code)(Java Doc)
public String getName()(Code)(Java Doc)
public int getNumParameters()(Code)(Java Doc)
public int getNumSources()(Code)(Java Doc)
public Class[] getParamClasses()(Code)(Java Doc)
public Object getParamDefaultValue(int index)(Code)(Java Doc)
public Object[] getParamDefaults()(Code)(Java Doc)
public Number getParamMaxValue(int index)(Code)(Java Doc)
public Number getParamMinValue(int index)(Code)(Java Doc)
public String[] getParamNames()(Code)(Java Doc)
public ParameterListDescriptor getParameterListDescriptor(String modeName)(Code)(Java Doc)
public PropertyGenerator[] getPropertyGenerators(String modeName)(Code)(Java Doc)
public PropertyGenerator[] getPropertyGenerators()(Code)(Java Doc)
public Class getRenderableDestClass()(Code)(Java Doc)
public Class[] getRenderableSourceClasses()(Code)(Java Doc)
public ResourceBundle getResourceBundle(Locale locale)(Code)(Java Doc)
public String[][] getResources(Locale locale)(Code)(Java Doc)
public Class[] getSourceClasses(String modeName)(Code)(Java Doc)
public Class[] getSourceClasses()(Code)(Java Doc)
public String[] getSourceNames()(Code)(Java Doc)
public String[] getSupportedModes()(Code)(Java Doc)
public boolean isImmediate()(Code)(Java Doc)
public boolean isModeSupported(String modeName)(Code)(Java Doc)
public boolean isRenderableSupported()(Code)(Java Doc)
public boolean isRenderedSupported()(Code)(Java Doc)
protected static Class[][] makeDefaultSourceClassList(String[] supportedModes, int numSources)(Code)(Java Doc)
public boolean validateArguments(String modeName, ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
public boolean validateArguments(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateParameters(String modeName, ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateParameters(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
public boolean validateRenderableArguments(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateRenderableSources(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateSources(String modeName, ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
protected boolean validateSources(ParameterBlock args, StringBuffer msg)(Code)(Java Doc)
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