Gernot Hoffmann CIE Color Space
Gernot Hoffmann CIE Color Space
Gernot Hoffmann CIE Color Space
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Appendix A <strong>Color</strong> Matching<br />
The calculation shows colors as defined by equal distances in <strong>CIE</strong>Lab. The corresponding<br />
values are drawn in the chromaticity diagram.<br />
BlueGreen (4) can be matched by positive weights RGB for <strong>CIE</strong> primaries.<br />
Vibrant BlueGreen (2) requires negative R. BlueGreen (1) is out of human gamut.<br />
RGB values are here normalized for 0...100.<br />
1.0<br />
y<br />
0.9<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
0.4<br />
0.3<br />
0.2<br />
<strong>Color</strong>Calc<br />
G.<strong>Hoffmann</strong><br />
Dec.06 / 2006<br />
X<br />
Y<br />
Z<br />
x<br />
y<br />
z<br />
L*<br />
a*<br />
b*<br />
R<br />
G<br />
B<br />
R’<br />
G’<br />
B’<br />
CCT<br />
RGB<br />
0.090936<br />
0.281233<br />
1.271889<br />
0.055312<br />
0.171060<br />
0.773627<br />
60.0000<br />
-100.0000 -100.0000 -63.2553 46.7170<br />
127.9629<br />
0.0000<br />
46.7170<br />
100.0000<br />
none<br />
out-gam<br />
520<br />
525<br />
515 530<br />
535<br />
510<br />
540<br />
545<br />
5<br />
505<br />
550<br />
555<br />
4<br />
560<br />
3<br />
500<br />
565<br />
570<br />
575 1<br />
2<br />
495<br />
580<br />
585<br />
590<br />
595<br />
490<br />
4<br />
6 7<br />
600<br />
605<br />
610<br />
8<br />
620<br />
9 635<br />
700<br />
1<br />
485<br />
2<br />
480<br />
3<br />
Med.White: Eq.Energy<br />
Ref.White: D50<br />
Input: Lab<br />
0.124317<br />
0.281233<br />
0.902067<br />
0.095071<br />
0.215073<br />
0.689856<br />
60.0000<br />
-75.0000 -75.0000 -38.0477 41.7155<br />
90.6690<br />
0.0000<br />
41.7155<br />
90.6690<br />
none<br />
out-gam<br />
0.165004<br />
0.281233<br />
0.611932<br />
0.155933<br />
0.265774<br />
0.578293<br />
60.0000<br />
-50.0000 -50.0000 -14.8426 37.0448<br />
61.4185<br />
0.0000<br />
37.0448<br />
61.4185<br />
none<br />
out-gam<br />
25000<br />
10000 D93<br />
8000<br />
6667 D65<br />
5714<br />
5000 D50<br />
4444<br />
4000<br />
3636<br />
3333<br />
3077<br />
2857<br />
2677<br />
2500<br />
2353<br />
2222<br />
2105<br />
2000<br />
Primaries: <strong>CIE</strong><br />
Trc: 1.0<br />
Bradford: No<br />
0.213721<br />
0.281233<br />
0.391815<br />
0.241011<br />
0.317144<br />
0.441845<br />
60.0000<br />
-25.0000 -25.0000 6.9838<br />
32.5818<br />
39.2362<br />
6.9838<br />
32.5818<br />
39.2362<br />
12527 K<br />
in-gam<br />
29<br />
0.271192<br />
0.281233<br />
0.232047<br />
0.345700<br />
0.358500<br />
0.295800<br />
60.0000<br />
0.0000<br />
0.0000<br />
28.0552<br />
28.2034<br />
23.1472<br />
28.0552<br />
28.2034<br />
23.1472<br />
5001 K<br />
in-gam<br />
b*<br />
100<br />
Intent: AbsCol<br />
Set: 13<br />
0.338140<br />
0.281233<br />
0.122959<br />
0.455510<br />
0.378851<br />
0.165639<br />
60.0000<br />
25.0000<br />
25.0000<br />
48.9952<br />
23.7865<br />
12.1761<br />
48.9952<br />
23.7865<br />
12.1761<br />
2504 K<br />
in-gam<br />
100 a*<br />
0.415287<br />
0.281233<br />
0.054882<br />
0.552683<br />
0.374278<br />
0.073039<br />
60.0000<br />
50.0000<br />
50.0000<br />
70.4276<br />
19.2082<br />
5.3480<br />
70.4276<br />
19.2082<br />
5.3480<br />
none<br />
in-gam<br />
Matrix Crx<br />
0.503358<br />
0.281233<br />
0.018146<br />
0.627052<br />
0.350343<br />
0.022605<br />
60.0000<br />
75.0000<br />
75.0000<br />
92.9761<br />
14.3453<br />
1.6875<br />
92.9761<br />
14.3453<br />
1.6875<br />
none<br />
in-gam<br />
0.603075<br />
0.281233<br />
0.001827<br />
0.680568<br />
0.317371<br />
0.002062<br />
60.0000<br />
100.0000<br />
100.0000<br />
117.3231<br />
9.0636<br />
0.0930<br />
100.0000<br />
9.0636<br />
0.0930<br />
none<br />
out-gam<br />
2.364998 -0.896709 -0.468149<br />
-0.515142 1.426371 0.088744<br />
0.005202 -0.014403 1.008898<br />
0.1<br />
0.0<br />
475<br />
470<br />
460<br />
380<br />
Matrix Cxr<br />
0.489921<br />
0.176937<br />
0.000000<br />
0.310016<br />
0.812422<br />
0.009999<br />
0.200063<br />
0.010641<br />
0.990301<br />
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 x 1.0<br />
6<br />
7<br />
8<br />
Trc<br />
9
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