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Interface java.awt.image.RasterOp

Implementing Classes:
AffineTransformOp, LookupOp, ThresholdOp, RescaleOp, ColorConvertOp, BandCombineOp, ConvolveOp

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 Summary
WritableRaster  createCompatibleDestRaster(Raster src)
Creates an empty destination Raster with the correct size and number of channels.
WritableRaster  filter(Raster src, WritableRaster dest)
Performs a single-input/single-output operation from a source Raster to a destination Raster.
Rectangle2D  getDestBounds(Raster src)
Returns the bounding box of the filtered destination Raster.
Point2D  getDestPoint(Point2D srcPt, Point2D dstPt)
Returns the location of the destination point given a point in the source Raster.
 

Method Detail

filter

public 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.

getDestBounds

public 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.

createCompatibleDestRaster

public 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.

getDestPoint

public 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.

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