org.jpedal.color

Class DeviceCMYKColorSpace

java.lang.Object

org.jpedal.color.GenericColorSpace

org.jpedal.color.DeviceCMYKColorSpace

public class DeviceCMYKColorSpace
extends GenericColorSpace

handle DeviceCMYKColorSpace

Field Summary

Fields inherited from class org.jpedal.color.GenericColorSpace

cb, ce, fasterPNG

Constructor Summary

Constructors

Constructor and Description
DeviceCMYKColorSpace()

Method Summary

Modifier and Type	Method and Description
void	clearCache() ensure next setColor will not match with old color as value may be out of sync
static byte[]	convertCMYK2RGBWithSimple(int w, int h, int pixelCount, byte[] data)
byte[]	convertIndexToRGB(byte[] index) convert Index to RGB
byte[]	dataToRGBByteArray(byte[] data, int w, int h) default RGB implementation just returns data
void	invalidateCaching(int color)
BufferedImage	JPEG2000ToRGBImage(byte[] data, int w, int h, int pX, int pY, int d) convert byte[] datastream JPEG to an image in RGB
BufferedImage	JPEGToRGBImage(byte[] data, int w, int h, int pX, int pY) Convert DCT encoded image bytestream to sRGB
void	setColor(float[] operand, int length) convert CMYK to RGB as defined by Adobe (p354 Section 6.2.4 in Adobe 1.3 spec 2nd edition) and set value
void	setColor(String[] number_values, int items) set CalRGB color (in terms of rgb)

Methods inherited from class org.jpedal.color.GenericColorSpace

cleanupImage, cleanupRaster, dataToRGB, getAlternateColorSpace, getColor, getColorComponentCount, getColorSpace, getColorSpaceInstance, getID, getIndexedColorComponent, getIndexedMap, getIndexSize, getRawColorSpacePDFType, getRawValues, getXMLColorToken, initCMYKColorspace, isImageYCCK, isIndexConverted, isInvalid, JPEG2000ToImage, nonRGBJPEGToRGBImage, setAlternateColorSpace, setCIEValues, setColor, setGS, setIndex, setPattern, setPrinting

Methods inherited from class java.lang.Object

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

Constructor Detail

DeviceCMYKColorSpace

public DeviceCMYKColorSpace()

Method Detail

clearCache

public void clearCache()

ensure next setColor will not match with old color as value may be out of sync

Overrides:

clearCache in class GenericColorSpace

invalidateCaching

public void invalidateCaching(int color)

Overrides:

invalidateCaching in class GenericColorSpace

setColor

public final void setColor(String[] number_values,
                           int items)

set CalRGB color (in terms of rgb)

Overrides:

setColor in class GenericColorSpace

setColor

public final void setColor(float[] operand,
                           int length)

convert CMYK to RGB as defined by Adobe (p354 Section 6.2.4 in Adobe 1.3 spec 2nd edition) and set value

Overrides:

setColor in class GenericColorSpace

JPEGToRGBImage

public final BufferedImage JPEGToRGBImage(byte[] data,
                                          int w,
                                          int h,
                                          int pX,
                                          int pY)

Convert DCT encoded image bytestream to sRGB

It uses the internal Java classes and the Adobe icm to convert CMYK and YCbCr-Alpha - the data is still DCT encoded.

The Sun class JPEGDecodeParam.java is worth examining because it contains lots of interesting comments

I tried just using the new IOImage.read() but on type 3 images, all my clipping code stopped working so I am still using 1.3

Overrides:

JPEGToRGBImage in class GenericColorSpace

dataToRGBByteArray

public byte[] dataToRGBByteArray(byte[] data,
                                 int w,
                                 int h)

default RGB implementation just returns data

Overrides:

dataToRGBByteArray in class GenericColorSpace

convertCMYK2RGBWithSimple

public static byte[] convertCMYK2RGBWithSimple(int w,
                                               int h,
                                               int pixelCount,
                                               byte[] data)

JPEG2000ToRGBImage

public BufferedImage JPEG2000ToRGBImage(byte[] data,
                                        int w,
                                        int h,
                                        int pX,
                                        int pY,
                                        int d)
                                 throws PdfException

convert byte[] datastream JPEG to an image in RGB

Overrides:

JPEG2000ToRGBImage in class GenericColorSpace

Throws:

PdfException

convertIndexToRGB

public final byte[] convertIndexToRGB(byte[] index)

convert Index to RGB

Overrides:

convertIndexToRGB in class GenericColorSpace