All Packages  Class Hierarchy  This Package  Previous  Next  Index

Interface java.awt.image.RasterOp

public interface RasterOp
This is an interface that describes single-input/single-output operations performed on Raster objects. This is implemented by such classes as AffineTransformOp, ConvolveOp, and LookupOp. The Source and Destination objects must contain the appropriate number of channels for the particular classes implementing this interface. Otherwise, an exception is thrown. This interface cannot be used to describe more sophisticated Ops such as ones that take multiple sources. Each class implementing this interface will specify whether or not it will allow an in-place filtering operation (i.e. source object equal to the destination object). Note that the restriction to single-input operations means that the values of destination pixels prior to the operation are not used as input to the filter operation.

See Also:
AffineTransformOp, BandCombineOp, ColorConvertOp, ConvolveOp, LookupOp, RescaleOp, ThresholdOp

Method Index

o createCompatibleDestRaster(Raster)
Creates an empty destination Raster with the correct size and number of channels.
o filter(Raster, WritableRaster)
Performs a single-input/single-output operation from a source Raster to a destination Raster.
o getDestBounds(Raster)
Returns the bounding box of the filtered destination Raster.
o getDestPoint(Point2D, Point2D)
Returns the location of the destination point given a point in the source Raster.

Methods

o filter 
public abstract WritableRaster filter(Raster src,
                                      WritableRaster dest)
Performs a single-input/single-output operation from a source Raster to a destination Raster. If the destination Raster does not exist, a new Raster will be created. The IllegalArgumentException may be thrown if the source and/or destination Raster is incompatible with the types of Rasters allowed by the subclass implementing this filter.

o getDestBounds 
public abstract Rectangle2D getDestBounds(Raster src)
Returns the bounding box of the filtered destination Raster. The IllegalArgumentException may be thrown if the source Raster is incompatible with the types of Rasters allowed by the subclass implementing this filter.

o createCompatibleDestRaster 
public abstract WritableRaster createCompatibleDestRaster(Raster src)
Creates an empty destination Raster with the correct size and number of channels. The IllegalArgumentException may be thrown if the source Raster is incompatible with the types of Rasters allowed by the subclass implementing this filter.

o getDestPoint 
public abstract Point2D getDestPoint(Point2D srcPt,
                                     Point2D dstPt)
Returns the location of the destination point given a point in the source Raster. If dstPt is non-null, it will be used to hold the return value. 

All Packages  Class Hierarchy  This Package  Previous  Next  Index
Submit a bug or feature