Function labPlugin

src/plugins/lab.ts:28–40

(ColordClass, parsers)

 * https://en.wikipedia.org/wiki/CIELAB_color_space
 */
const labPlugin: Plugin = (ColordClass, parsers): void => {
  ColordClass.prototype.toLab = function () {
    return roundLaba(rgbaToLaba(this.rgba));
  };

  ColordClass.prototype.delta = function (color = "#FFF") {
    const compared = color instanceof ColordClass ? color : new ColordClass(color);
    const delta = getDeltaE00(this.toLab(), compared.toLab()) / 100;
    return clamp(round(delta, 3));
  };

  parsers.object.push([parseLaba, "lab"]);
};

export default labPlugin;