Class PDIndexed
java.lang.Object
org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace
org.apache.pdfbox.pdmodel.graphics.color.PDSpecialColorSpace
org.apache.pdfbox.pdmodel.graphics.color.PDIndexed
- All Implemented Interfaces:
COSObjectable
An Indexed colour space specifies that an area is to be painted using a colour table
of arbitrary colours from another color space.
- Author:
- John Hewson, Ben Litchfield
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Field Summary
Fields inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace
array
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionReturns the base color space.float[]
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 spacevoid
Sets the base color space.void
setHighValue
(int high) Sets the highest value that is allowed.toRawImage
(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.toString()
Methods inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDSpecialColorSpace
getCOSObject
Methods inherited from class org.apache.pdfbox.pdmodel.graphics.color.PDColorSpace
create, create, create, toRawImage, toRGBImageAWT
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Constructor Details
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PDIndexed
public PDIndexed()Creates a new Indexed color space. Default DeviceRGB, hival 255. -
PDIndexed
Creates a new indexed color space from the given PDF array.- Parameters:
indexedArray
- the array containing the indexed parameters- Throws:
IOException
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PDIndexed
Creates a new indexed color space from the given PDF array.- Parameters:
indexedArray
- the array containing the indexed parametersresources
- the resources, can be null. Allows to use its cache for the colorspace.- Throws:
IOException
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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()Description copied from class:PDColorSpace
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.
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getBaseColorSpace
Returns the base color space.- Returns:
- the base color space.
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setBaseColorSpace
Sets the base color space.- Parameters:
base
- the base color space
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setHighValue
public void setHighValue(int high) Sets the highest value that is allowed. This cannot be higher than 255.- Parameters:
high
- the highest value for the lookup table
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toString
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