org.jpedal.color

Class LabColorSpace

java.lang.Object

org.jpedal.color.GenericColorSpace

org.jpedal.color.LabColorSpace

public class LabColorSpace
extends GenericColorSpace

handle LabColorSpace

Field Summary

Fields inherited from class org.jpedal.color.GenericColorSpace

cb, ce, fasterPNG

Constructor Summary

Constructors

Constructor and Description
LabColorSpace(float[] whitepoint, float[] range)

Method Summary

Modifier and Type	Method and Description
byte[]	convertIndexToRGB(byte[] index) convert Index to RGB
BufferedImage	dataToRGB(byte[] data, int width, int height) convert LAB stream to RGB and return as an image
byte[]	dataToRGBByteArray(byte[] data, int w, int h) Lab to 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) set color
void	setColor(String[] number_values, int items) set color (in terms of rgb)

Methods inherited from class org.jpedal.color.GenericColorSpace

cleanupImage, cleanupRaster, clearCache, getAlternateColorSpace, getColor, getColorComponentCount, getColorSpace, getColorSpaceInstance, getID, getIndexedColorComponent, getIndexedMap, getIndexSize, getRawColorSpacePDFType, getRawValues, getXMLColorToken, initCMYKColorspace, invalidateCaching, isImageYCCK, isIndexConverted, isInvalid, JPEG2000ToImage, JPEG2000ToRGBImage, 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

LabColorSpace

public LabColorSpace(float[] whitepoint,
                     float[] range)

Method Detail

convertIndexToRGB

public byte[] convertIndexToRGB(byte[] index)

convert Index to RGB

Overrides:

convertIndexToRGB in class GenericColorSpace

JPEGToRGBImage

public 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)

Lab to RGB

Overrides:

dataToRGBByteArray in class GenericColorSpace

dataToRGB

public BufferedImage dataToRGB(byte[] data,
                               int width,
                               int height)

convert LAB stream to RGB and return as an image

Overrides:

dataToRGB in class GenericColorSpace

setColor

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

set color (in terms of rgb)

Overrides:

setColor in class GenericColorSpace

setColor

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

set color

Overrides:

setColor in class GenericColorSpace