import type { Color, ReadonlyColor } from "../api.js";
/**
 * @remarks
 * https://en.wikipedia.org/wiki/YCbCr#YCbCr
 *
 * By default uses luminance weights as per BT.709 (aka
 * {@link RGB_LUMINANCE_REC709}):
 *
 * - https://en.wikipedia.org/wiki/YCbCr#ITU-R_BT.709_conversion
 * - https://en.wikipedia.org/wiki/Rec._709
 *
 * @param out -
 * @param src -
 * @param luma -
 */
export declare const rgbYcc: (out: Color | null, src: ReadonlyColor, luma?: number[]) => import("@thi.ng/vectors").Vec<number>;
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