org.apache.pdfbox.pdmodel.graphics.color

Class PDDeviceRGB

java.lang.Object

org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace

org.apache.pdfbox.pdmodel.graphics.color.PDDeviceColorSpace

org.apache.pdfbox.pdmodel.graphics.color.PDDeviceRGB

All Implemented Interfaces:

COSObjectable

public final class PDDeviceRGB
extends PDDeviceColorSpace

Colours in the DeviceRGB colour space are specified according to the additive RGB (red-green-blue) colour model.

Author:

Ben Litchfield, John Hewson

Field Summary

Fields

Modifier and Type	Field and Description
static PDDeviceRGB	INSTANCE This is the single instance of this class.

Fields inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace

array

Method Summary

Modifier and Type	Method and Description
float[]	getDefaultDecode(int bitsPerComponent) Returns the default decode array for this color space.
PDColor	getInitialColor() Returns the initial color value for this color space.
String	getName() Returns the name of the color space.
int	getNumberOfComponents() Returns the number of components in this color space
BufferedImage	toRawImage(WritableRaster raster) Returns the image in this colorspace or null.
float[]	toRGB(float[] value) Returns the RGB equivalent of the given color value.
BufferedImage	toRGBImage(WritableRaster raster) Returns the (A)RGB equivalent of the given raster.

Methods inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDDeviceColorSpace

getCOSObject, toString

Methods inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace

create, create, create, toRawImage, toRGBImageAWT

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

INSTANCE

public static final PDDeviceRGB INSTANCE

This is the single instance of this class.

Method Detail

getName

public String getName()

Description copied from class: PDColorSpace

Returns the name of the color space.

Specified by:

getName in class PDColorSpace

Returns:

the name of the color space

getNumberOfComponents

public int getNumberOfComponents()

Returns the number of components in this color space

Specified by:

getNumberOfComponents in class PDColorSpace

Returns:

the number of components in this color space

getDefaultDecode

public float[] getDefaultDecode(int bitsPerComponent)

Description copied from class: PDColorSpace

Returns the default decode array for this color space.

Specified by:

getDefaultDecode in class PDColorSpace

Parameters:

bitsPerComponent - the number of bits per component.

Returns:

the default decode array

getInitialColor

public PDColor getInitialColor()

Description copied from class: PDColorSpace

Returns the initial color value for this color space.

Specified by:

getInitialColor in class PDColorSpace

Returns:

the initial color value for this color space

toRGB

public float[] toRGB(float[] value)

Description copied from class: PDColorSpace

Returns the RGB equivalent of the given color value.

Specified by:

toRGB in class PDColorSpace

Parameters:

value - a color value with component values between 0 and 1

Returns:

an array of R,G,B value between 0 and 255

toRGBImage

public BufferedImage toRGBImage(WritableRaster raster)
                         throws IOException

Description copied from class: PDColorSpace

Returns the (A)RGB equivalent of the given raster.

Specified by:

toRGBImage in class PDColorSpace

Parameters:

raster - the source raster

Returns:

an (A)RGB buffered image

Throws:

IOException - if the color conversion fails

toRawImage

public BufferedImage toRawImage(WritableRaster raster)
                         throws IOException

Description copied from class: PDColorSpace

Returns the image in this colorspace or null. No conversion is performed. For special colorspaces like PDSeparation the image is returned in the gray colorspace. For undefined colorspaces like DeviceCMYK/DeviceRGB and DeviceGray null is returned. You can always fallback to PDColorSpace.toRGBImage(WritableRaster) if this returns null.

Specified by:

toRawImage in class PDColorSpace

Parameters:

raster - the source raster

Returns:

an buffered image in this colorspace. Or null if it is not possible to extract that image with the original colorspace without conversion.

Throws:

IOException