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
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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