convertLabToXyz50.js•489 B
import { k, e } from '../xyz50/constants.js';
import { D50 } from '../constants.js';
let fn = v => (Math.pow(v, 3) > e ? Math.pow(v, 3) : (116 * v - 16) / k);
const convertLabToXyz50 = ({ l, a, b, alpha }) => {
let fy = (l + 16) / 116;
let fx = a / 500 + fy;
let fz = fy - b / 200;
let res = {
mode: 'xyz50',
x: fn(fx) * D50.X,
y: fn(fy) * D50.Y,
z: fn(fz) * D50.Z
};
if (alpha !== undefined) {
res.alpha = alpha;
}
return res;
};
export default convertLabToXyz50;