org.apache.pdfbox.pdmodel.graphics.color
Class ColorSpaceLab

java.lang.Object
  java.awt.color.ColorSpace
      org.apache.pdfbox.pdmodel.graphics.color.ColorSpaceLab

All Implemented Interfaces:

Serializable

public class ColorSpaceLab
extends ColorSpace

This class represents a CalRGB color space. The color conversion uses the algorithm described on wikipedia. The blackpoint isn't used, as I can't find any hint how to do that.

See Also:

Serialized Form

Field Summary

Fields inherited from class java.awt.color.ColorSpace

CS_CIEXYZ, CS_GRAY, CS_LINEAR_RGB, CS_PYCC, CS_sRGB, TYPE_2CLR, TYPE_3CLR, TYPE_4CLR, TYPE_5CLR, TYPE_6CLR, TYPE_7CLR, TYPE_8CLR, TYPE_9CLR, TYPE_ACLR, TYPE_BCLR, TYPE_CCLR, TYPE_CMY, TYPE_CMYK, TYPE_DCLR, TYPE_ECLR, TYPE_FCLR, TYPE_GRAY, TYPE_HLS, TYPE_HSV, TYPE_Lab, TYPE_Luv, TYPE_RGB, TYPE_XYZ, TYPE_YCbCr, TYPE_Yxy

Constructor Summary

ColorSpaceLab()
Default Constructor.

ColorSpaceLab(PDTristimulus whitept, PDTristimulus blackpt, PDRange a, PDRange b)
Constructor.

Method Summary

float[]	fromCIEXYZ(float[] colorvalue)
float[]	fromRGB(float[] rgbvalue)
float[]	toCIEXYZ(float[] colorvalue)
float[]	toRGB(float[] colorvalue)

Methods inherited from class java.awt.color.ColorSpace

getInstance, getMaxValue, getMinValue, getName, getNumComponents, getType, isCS_sRGB

Methods inherited from class java.lang.Object

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

Constructor Detail

ColorSpaceLab

public ColorSpaceLab()

Default Constructor.

ColorSpaceLab

public ColorSpaceLab(PDTristimulus whitept,
                     PDTristimulus blackpt,
                     PDRange a,
                     PDRange b)

Constructor.

Parameters:

whitept - whitepoint values

blackpt - blackpoint values

a - range for value a

b - range for value b

Method Detail

toRGB

public float[] toRGB(float[] colorvalue)

Specified by:

toRGB in class ColorSpace

fromRGB

public float[] fromRGB(float[] rgbvalue)

Specified by:

fromRGB in class ColorSpace

toCIEXYZ

public float[] toCIEXYZ(float[] colorvalue)

Specified by:

toCIEXYZ in class ColorSpace

fromCIEXYZ

public float[] fromCIEXYZ(float[] colorvalue)

Specified by:

fromCIEXYZ in class ColorSpace