/*
* Copyright ( c ) 1999 , 2021 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code 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
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
* or visit www . oracle . com if you need additional information or have any
* questions .
*/
import java.awt.color.ColorSpace;
import java.awt.color.ICC_ColorSpace;
import java.awt.color.ICC_Profile;
import java.awt.color.ICC_ProfileRGB;
/**
* @ test
* @ bug 4267139
* @ summary This test verifies that an sRGB color can be accurately converted to
* an CIE colorimetric XYZ value .
*/
public final class XYZTest {
public static void main(String[] args) {
float [] rgb = new float [3 ];
rgb[0 ] = 1 .0 F;
rgb[1 ] = 1 .0 F;
rgb[2 ] = 1 .0 F;
ICC_ProfileRGB pf =
(ICC_ProfileRGB) ICC_Profile.getInstance(ColorSpace.CS_sRGB);
ICC_ColorSpace srgb = new ICC_ColorSpace(pf);
float [] xyz = srgb.toCIEXYZ(rgb);
float mxyz[] = new float [3 ];
// adjust D50 relative values by a factor which is the ratio
// of the device white point (in this case sRGB) divided by
// the D50 (PCS) white point
mxyz[0 ] = xyz[0 ] * (0 .9505 f / 0 .9642 f);
mxyz[1 ] = xyz[1 ] * (1 .0000 f / 1 .0000 f);
mxyz[2 ] = xyz[2 ] * (1 .0891 f / 0 .8249 f);
if ((Math.abs(mxyz[0 ] - 0 .9505 f) > 0 .01 f) ||
(Math.abs(mxyz[1 ] - 1 .0000 f) > 0 .01 f) ||
(Math.abs(mxyz[2 ] - 1 .0891 f) > 0 .01 f)) {
throw new Error("sRGB (1.0, 1.0, 1.0) doesn't convert " +
"correctly to CIEXYZ" );
}
}
}
Messung V0.5 in Prozent C=94 H=93 G=93
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-06-10)
¤
*© Formatika GbR, Deutschland