convertXyz65ToA98.js•750 B
/*
Convert CIE XYZ D65 values to A98 RGB
References:
* https://drafts.csswg.org/css-color/#color-conversion-code
* http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html
*/
const gamma = v => Math.pow(Math.abs(v), 256 / 563) * Math.sign(v);
const convertXyz65ToA98 = ({ x, y, z, alpha }) => {
let res = {
mode: 'a98',
r: gamma(
x * 2.0415879038107465 -
y * 0.5650069742788597 -
0.3447313507783297 * z
),
g: gamma(
x * -0.9692436362808798 +
y * 1.8759675015077206 +
0.0415550574071756 * z
),
b: gamma(
x * 0.0134442806320312 -
y * 0.1183623922310184 +
1.0151749943912058 * z
)
};
if (alpha !== undefined) {
res.alpha = alpha;
}
return res;
};
export default convertXyz65ToA98;