23 lines
449 B
JavaScript
23 lines
449 B
JavaScript
/*
|
|
The XYZ tristimulus values (white point)
|
|
of standard illuminants for the CIE 1931 2°
|
|
standard observer.
|
|
|
|
See: https://en.wikipedia.org/wiki/Standard_illuminant
|
|
*/
|
|
|
|
export const D50 = {
|
|
X: 0.3457 / 0.3585,
|
|
Y: 1,
|
|
Z: (1 - 0.3457 - 0.3585) / 0.3585
|
|
};
|
|
|
|
export const D65 = {
|
|
X: 0.3127 / 0.329,
|
|
Y: 1,
|
|
Z: (1 - 0.3127 - 0.329) / 0.329
|
|
};
|
|
|
|
export const k = Math.pow(29, 3) / Math.pow(3, 3);
|
|
export const e = Math.pow(6, 3) / Math.pow(29, 3);
|