Edit File: convertA98ToXyz65.js
/* Convert A98 RGB values to CIE XYZ D65 References: * https://drafts.csswg.org/css-color/#color-conversion-code * http://www.brucelindbloom.com/index.html?Eqn_RGB_XYZ_Matrix.html * https://www.adobe.com/digitalimag/pdfs/AdobeRGB1998.pdf */ const linearize = v => Math.pow(Math.abs(v), 563 / 256) * Math.sign(v); const convertA98ToXyz65 = a98 => { let r = linearize(a98.r); let g = linearize(a98.g); let b = linearize(a98.b); let res = { mode: 'xyz65', x: 0.5766690429101305 * r + 0.1855582379065463 * g + 0.1882286462349947 * b, y: 0.297344975250536 * r + 0.6273635662554661 * g + 0.0752914584939979 * b, z: 0.0270313613864123 * r + 0.0706888525358272 * g + 0.9913375368376386 * b }; if (a98.alpha !== undefined) { res.alpha = a98.alpha; } return res; }; export default convertA98ToXyz65;
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