java.awt.image
Class ColorConvertOp
public
class
ColorConvertOp
extends Object
implements BufferedImageOp, RasterOp
ColorConvertOp is a filter for converting images or rasters between
colorspaces, either through a sequence of colorspaces or just from source to
destination.
Color conversion is done on the color components without alpha. Thus
if a BufferedImage has alpha premultiplied, this is divided out before
color conversion, and premultiplication applied if the destination
requires it.
Color rendering and dithering hints may be applied if specified. This is
likely platform-dependent.
Constructor Summary |
| ColorConvertOp(ColorSpace cspace, RenderingHints hints)
Convert a BufferedImage through a ColorSpace.
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| ColorConvertOp(ColorSpace srcCspace, ColorSpace dstCspace, RenderingHints hints)
Convert from a source colorspace to a destination colorspace.
|
| ColorConvertOp(ICC_Profile[] profiles, RenderingHints hints)
Convert from a source colorspace to a destinatino colorspace.
|
| ColorConvertOp(RenderingHints hints)
Convert from source color space to destination color space.
|
public ColorConvertOp(ColorSpace cspace, RenderingHints hints)
Convert a BufferedImage through a ColorSpace.
Objects created with this constructor can be used to convert
BufferedImage's to a destination ColorSpace. Attempts to convert Rasters
with this constructor will result in an IllegalArgumentException when the
filter(Raster, WritableRaster) method is called.
Parameters: cspace The target color space. hints Rendering hints to use in conversion, if any (may be null)
Throws: NullPointerException if the ColorSpace is null.
public ColorConvertOp(ColorSpace srcCspace, ColorSpace dstCspace, RenderingHints hints)
Convert from a source colorspace to a destination colorspace.
This constructor takes two ColorSpace arguments as the source and
destination color spaces. It is usually used with the
filter(Raster, WritableRaster) method, in which case the source colorspace
is assumed to correspond to the source Raster, and the destination
colorspace with the destination Raster.
If used with BufferedImages that do not match the source or destination
colorspaces specified here, there is an implicit conversion from the
source image to the source ColorSpace, or the destination ColorSpace to
the destination image.
Parameters: srcCspace The source ColorSpace. dstCspace The destination ColorSpace. hints Rendering hints to use in conversion, if any (may be null).
Throws: NullPointerException if any ColorSpace is null.
public ColorConvertOp(ICC_Profile[] profiles, RenderingHints hints)
Convert from a source colorspace to a destinatino colorspace.
This constructor builds a ColorConvertOp from an array of ICC_Profiles.
The source will be converted through the sequence of color spaces
defined by the profiles. If the sequence of profiles doesn't give a
well-defined conversion, an IllegalArgumentException is thrown.
If used with BufferedImages that do not match the source or destination
colorspaces specified here, there is an implicit conversion from the
source image to the source ColorSpace, or the destination ColorSpace to
the destination image.
For Rasters, the first and last profiles must have the same number of
bands as the source and destination Rasters, respectively. If this is
not the case, or there fewer than 2 profiles, an IllegalArgumentException
will be thrown.
Parameters: profiles An array of ICC_Profile's to convert through. hints Rendering hints to use in conversion, if any (may be null).
Throws: NullPointerException if the profile array is null. IllegalArgumentException if the array is not a well-defined
conversion.
public ColorConvertOp(RenderingHints hints)
Convert from source color space to destination color space.
Only valid for BufferedImage objects, this Op converts from the source
image's color space to the destination image's color space.
The destination in the filter(BufferedImage, BufferedImage) method cannot
be null for this operation, and it also cannot be used with the
filter(Raster, WritableRaster) method.
Parameters: hints Rendering hints to use in conversion, if any (may be null).
Creates an empty BufferedImage with the size equal to the source and the
correct number of bands for the conversion defined in this Op. The newly
created image is created with the specified ColorModel, or if no ColorModel
is supplied, an appropriate one is chosen.
Parameters: src The source image. dstCM A color model for the destination image (may be null).
Returns: The new compatible destination image.
Throws: IllegalArgumentException if an appropriate colormodel cannot be
chosen with the information given.
Creates a new WritableRaster with the size equal to the source and the
correct number of bands.
Note, the new Raster will always use a BYTE storage size, regardless of
the color model or defined destination; this is for compatibility with
the reference implementation.
Parameters: src The source Raster.
Returns: The new compatible destination raster.
Throws: IllegalArgumentException if there isn't enough colorspace
information to create a compatible Raster.
Converts the source image using the conversion path specified in the
constructor. The resulting image is stored in the destination image if one
is provided; otherwise a new BufferedImage is created and returned.
The source and destination BufferedImage (if one is supplied) must have
the same dimensions.
Parameters: src The source image. dst The destination image.
Returns: The transformed image.
Throws: IllegalArgumentException if the rasters and/or color spaces are
incompatible.
Converts the source raster using the conversion path specified in the
constructor. The resulting raster is stored in the destination raster if
one is provided; otherwise a new WritableRaster is created and returned.
This operation is not valid with every constructor of this class; see
the constructors for details. Further, the source raster must have the
same number of bands as the source ColorSpace, and the destination raster
must have the same number of bands as the destination ColorSpace.
The source and destination raster (if one is supplied) must also have the
same dimensions.
Parameters: src The source raster. dest The destination raster.
Returns: The transformed raster.
Throws: IllegalArgumentException if the rasters and/or color spaces are
incompatible.
Returns the corresponding destination boundary of a source boundary.
Because this is not a geometric operation, the destination and source
boundaries will be identical.
Parameters: src The source boundary.
Returns: The boundaries of the destination.
public final Rectangle2D getBounds2D(
Raster src)
Returns the corresponding destination boundary of a source boundary.
Because this is not a geometric operation, the destination and source
boundaries will be identical.
Parameters: src The source boundary.
Returns: The boundaries of the destination.
public final ICC_Profile[] getICC_Profiles()
Returns the array of ICC_Profiles used to create this Op, or null if the
Op was created using ColorSpace arguments.
Returns: The array of ICC_Profiles, or null.
public final Point2D getPoint2D(Point2D src, Point2D dst)
Returns the corresponding destination point for a source point.
Because this is not a geometric operation, the destination and source
points will be identical.
Parameters: src The source point. dst The transformed destination point.
Returns: The transformed destination point.
public final RenderingHints getRenderingHints()
Returns the rendering hints for this op.
Returns: The rendering hints for this Op, or null.