Class ConstantsAbstract

Standard Illuminant D50 (Horizon Light). Standard riference for ProPhoto RGB, Adobe RGB (adapted), and printing (ICC Profiles). Observer: 2° (CIE 1931). Normalized values (Y = 1.0).

Standard Illuminant D65 (Noon Daylight). Standard reference for sRGB, Rec.709, Rec.2020, P3. Observer: 2° (CIE 1931). Normalized vlaues (Y = 1.0).

Illuminant E (Equal Energy). teoreticla point where X=Y=Z. Reference for spaces as CIE xyY.