Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Interface BufferedImageOp - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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java.awt.image
Interface BufferedImageOp

All Known Implementing Classes:: LookupOp, RescaleOp, ColorConvertOp, ConvolveOp, AffineTransformOp

public interface BufferedImageOp

This interface describes single-input/single-output operations performed on BufferedImage objects. It is implemented by such classes as AffineTransformOp, ConvolveOp, BandCombineOp, and LookupOp. These objects can be passed into a BufferedImageFilter to operate on a BufferedImage in the ImageProducer-ImageFilter-ImageConsumer paradigm. 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:: BufferedImage, BufferedImageFilter, AffineTransformOp, BandCombineOp, ColorConvertOp, ConvolveOp, LookupOp, RescaleOp

Method Summary

BufferedImage createCompatibleDestImage(BufferedImage src, ColorModel destCM)
          Creates a zeroed destination image with the correct size and number of bands.

BufferedImage filter(BufferedImage src, BufferedImage dest)
          Performs a single-input/single-output operation on a BufferedImage.

Rectangle2D getBounds2D(BufferedImage src)
          Returns the bounding box of the filtered destination image.

Point2D getPoint2D(Point2D srcPt, Point2D dstPt)
          Returns the location of the destination point given a point in the source image.

RenderingHints getRenderingHints()
          Returns the rendering hints for this BufferedImageOp.

Method Detail

filter

public BufferedImage filter(BufferedImage src,
                            BufferedImage dest)

Performs a single-input/single-output operation on a BufferedImage. If the color models for the two images do not match, a color conversion into the destination color model will be performed. If the destination image is null, a BufferedImage with an appropriate ColorModel will be created. The IllegalArgumentException may be thrown if the source and/or destination image is incompatible with the types of images allowed by the class implementing this filter.

getBounds2D

public Rectangle2D getBounds2D(BufferedImage src)

Returns the bounding box of the filtered destination image. The IllegalArgumentException may be thrown if the source image is incompatible with the types of images allowed by the class implementing this filter.

createCompatibleDestImage

public BufferedImage createCompatibleDestImage(BufferedImage src,
                                               ColorModel destCM)

Creates a zeroed destination image with the correct size and number of bands. The IllegalArgumentException may be thrown if the source image is incompatible with the types of images allowed by the class implementing this filter.

Parameters:: src - Source image for the filter operation.; destCM - ColorModel of the destination. If null, the ColorModel of the source will be used.

getPoint2D

public Point2D getPoint2D(Point2D srcPt,
                          Point2D dstPt)

Returns the location of the destination point given a point in the source image. If dstPt is non-null, it will be used to hold the return value.

getRenderingHints

public RenderingHints getRenderingHints()

Returns the rendering hints for this BufferedImageOp. Returns null if no hints have been set.