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
Colours in the DeviceRGB colour space are specified according to the additive
RGB (red-green-blue) colour model.
- Author:
- Ben Litchfield, John Hewson
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final PDDeviceRGB
This is the single instance of this class.Fields inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace
array
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Method Summary
Modifier and TypeMethodDescriptionfloat[]
getDefaultDecode
(int bitsPerComponent) Returns the default decode array for this color space.Returns the initial color value for this color space.getName()
Returns the name of the color space.int
Returns the number of components in this color spacetoRawImage
(WritableRaster raster) Returns the image in this colorspace or null.float[]
toRGB
(float[] value) Returns the RGB equivalent of the given color value.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
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Field Details
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INSTANCE
This is the single instance of this class.
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Method Details
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getName
Description copied from class:PDColorSpace
Returns the name of the color space.- Specified by:
getName
in classPDColorSpace
- Returns:
- the name of the color space
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getNumberOfComponents
public int getNumberOfComponents()Returns the number of components in this color space- Specified by:
getNumberOfComponents
in classPDColorSpace
- Returns:
- the number of components in this color space
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getDefaultDecode
public float[] getDefaultDecode(int bitsPerComponent) Description copied from class:PDColorSpace
Returns the default decode array for this color space.- Specified by:
getDefaultDecode
in classPDColorSpace
- Parameters:
bitsPerComponent
- the number of bits per component.- Returns:
- the default decode array
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getInitialColor
Description copied from class:PDColorSpace
Returns the initial color value for this color space.- Specified by:
getInitialColor
in classPDColorSpace
- Returns:
- the initial color value for this color space
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toRGB
public float[] toRGB(float[] value) Description copied from class:PDColorSpace
Returns the RGB equivalent of the given color value.- Specified by:
toRGB
in classPDColorSpace
- Parameters:
value
- a color value with component values between 0 and 1- Returns:
- an array of R,G,B value between 0 and 255
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toRGBImage
Description copied from class:PDColorSpace
Returns the (A)RGB equivalent of the given raster.- Specified by:
toRGBImage
in classPDColorSpace
- Parameters:
raster
- the source raster- Returns:
- an (A)RGB buffered image
- Throws:
IOException
- if the color conversion fails
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toRawImage
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 toPDColorSpace.toRGBImage(WritableRaster)
if this returns null.- Specified by:
toRawImage
in classPDColorSpace
- 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
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