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Showing content from https://docs.oracle.com/en/java/javase/19/docs/api/java.desktop/java/awt/image/RasterOp.html below:

RasterOp (Java SE 19 & JDK 19)

All Known Implementing Classes:

AffineTransformOp, BandCombineOp, ColorConvertOp, ConvolveOp, LookupOp, RescaleOp

public interface RasterOp

This interface describes single-input/single-output operations performed on Raster objects. It is implemented by such classes as AffineTransformOp, ConvolveOp, and LookupOp. The Source and Destination objects must contain the appropriate number of bands 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

• Method Summary

  Creates a zeroed destination Raster with the correct size and number of bands.

  Performs a single-input/single-output operation from a source Raster to a destination Raster.

  Returns the bounding box of the filtered destination Raster.

  Returns the location of the destination point given a point in the source Raster.

  Returns the rendering hints for this RasterOp.

• Method Details
  • filter

    Performs a single-input/single-output operation from a source Raster to a destination Raster. If the destination Raster is null, 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 class implementing this filter.

    Parameters:

    src - the source Raster

    dest - the destination WritableRaster

    Returns:

    a WritableRaster that represents the result of the filtering operation.

  • getBounds2D

    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 class implementing this filter.

    Parameters:

    src - the source Raster

    Returns:

    a Rectangle2D that is the bounding box of the Raster resulting from the filtering operation.

  • createCompatibleDestRaster

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

    Parameters:

    src - the source Raster

    Returns:

    a WritableRaster that is compatible with src

  • getPoint2D

    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.

    Parameters:

    srcPt - the source Point2D

    dstPt - the destination Point2D

    Returns:

    the location of the destination point.

  • getRenderingHints

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

    Returns:

    the RenderingHints object of this RasterOp.

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