gnu.java.awt.color

Class SrgbConverter

Implemented Interfaces:
ColorSpaceConverter

public class SrgbConverter
extends Object
implements ColorSpaceConverter

Note the matrix numbers used here are NOT identical to those in the w3 spec, as those numbers are CIE XYZ relative a D65 white point. The CIE XYZ we use is relative a D50 white point, so therefore a linear Bradford transform matrix for D65->D50 mapping has been applied. (The ICC documents describe this transform) Linearized Bradford transform: 0.8951 0.2664 -0.1614 -0.7502 1.7135 0.0367 0.0389 -0.0685 1.0296 Inverse: 0.9870 -0.1471 0.1600 0.4323 0.5184 0.0493 -0.00853 0.0400 0.9685

Method Summary

static float[]
RGBtoXYZ(float[] in)
sRGB --> CIE XYZ (D50 relative) Static as it's used by other ColorSpaceConverters to convert to XYZ if the color space is defined in RGB.
static float[]
XYZtoRGB(float[] in)
CIE XYZ (D50 relative) --> sRGB Static as it's used by other ColorSpaceConverters to convert to sRGB if the color space is defined in XYZ.
float[]
fromCIEXYZ(float[] in)
float[]
fromRGB(float[] in)
float[]
toCIEXYZ(float[] in)
float[]
toRGB(float[] in)

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

RGBtoXYZ

public static float[] RGBtoXYZ(float[] in)
sRGB --> CIE XYZ (D50 relative) Static as it's used by other ColorSpaceConverters to convert to XYZ if the color space is defined in RGB.

XYZtoRGB

public static float[] XYZtoRGB(float[] in)
CIE XYZ (D50 relative) --> sRGB Static as it's used by other ColorSpaceConverters to convert to sRGB if the color space is defined in XYZ.

fromCIEXYZ

public float[] fromCIEXYZ(float[] in)
Specified by:
fromCIEXYZ in interface ColorSpaceConverter

fromRGB

public float[] fromRGB(float[] in)
Specified by:
fromRGB in interface ColorSpaceConverter

toCIEXYZ

public float[] toCIEXYZ(float[] in)
Specified by:
toCIEXYZ in interface ColorSpaceConverter

toRGB

public float[] toRGB(float[] in)
Specified by:
toRGB in interface ColorSpaceConverter

SrgbConverter.java -- sRGB conversion class Copyright (C) 2004 Free Software Foundation This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.