| java.lang.Object
 javax.media.jai.OperationDescriptorImpl
javax.media.jai.operator.SubtractFromConstDescriptor
| SubtractFromConstDescriptor | | public class SubtractFromConstDescriptor extends OperationDescriptorImpl (Code) | | An OperationDescriptor describing the
"SubtractFromConst" operation.
The SubtractFromConst operation takes one rendered or
renderable image and an array of double constants, and subtracts
every pixel of the same band of the source from 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.
By default, the destination image bound, data type, and number of
bands are the same as the source image. If the result of the operation
underflows/overflows the minimum/maximum value supported by the
destination data type, then it will be clamped to the minimum/maximum
value respectively.
The destination pixel values are defined by the pseudocode:
if (constants.length < dstNumBands) {
dst[x][y][b] = constants[0] - src[x][y][b];
} else {
dst[x][y][b] = constants[b] - src[x][y][b];
}
Resource List
| Name | Value |
|---|
| GlobalName | SubtractFromConst |
| LocalName | SubtractFromConst |
| Vendor | com.sun.media.jai |
| Description | Subtracts an image from
constants. |
| DocURL | http://java.sun.com/products/java-media/jai/forDevelopers/jai-apidocs/javax/media/jai/operator/SubtractFromConstDescriptor.html |
| Version | 1.0 |
| arg0Desc | The constants to be subtracted from. |
Parameter List
| Name | Class Type |
Default Value |
|---|
| constants | double[] |
NO_PARAMETER_DEFAULT |
See Also: javax.media.jai.OperationDescriptor |
| SubtractFromConstDescriptor | | public SubtractFromConstDescriptor()(Code) | | Constructor.
|
| isRenderableSupported | | public boolean isRenderableSupported()(Code) | | Returns true since renderable operation is supported.
|
| validateParameters | | protected boolean validateParameters(ParameterBlock args, StringBuffer message)(Code) | | Validates the input parameter.
In addition to the standard checks performed by the
superclass method, this method checks that the length of the
"constants" array is at least 1.
|
| 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)
|
|
|