export declare class ViewingConditions {
    static readonly sRgb: ViewingConditions;
    static readonly standard: ViewingConditions;
    readonly whitePoint: number[];
    readonly adaptingLuminance: number;
    readonly backgroundLstar: number;
    readonly surround: number;
    readonly discountingIlluminant: boolean;
    readonly backgroundYTowhitePointY: number;
    readonly aw: number;
    readonly nbb: number;
    readonly ncb: number;
    readonly c: number;
    readonly nC: number;
    readonly drgbInverse: number[];
    readonly rgbD: number[];
    readonly fl: number;
    readonly fLRoot: number;
    readonly z: number;
    private constructor();
    /**
     * Convenience constructor for ViewingConditions.
     *
     * @param whitePoint coordinates of white in XYZ color space
     * @param adaptingLuminance light strength, in lux
     * @param backgroundLstar average luminance of 10 degrees around color
     * @param surround brightness of the entire environment
     * @param discountingIlluminant whether eyes have adjusted to lighting
     */
    static make(opts?: {
        whitePoint?: number[];
        adaptingLuminance?: number;
        backgroundLstar?: number;
        surround?: number;
        discountingIlluminant?: boolean;
    }): ViewingConditions;
}
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