UNPKG

allc

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A small typescript package for color conversion.

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/** * Calculates the X component of CIE 1931 XYZ from CIE 1931 xyY. * * @param x The x component of CIE 1931 xyY, typically in the range [0, 1]. * @param y The y component of CIE 1931 xyY, typically in the range [0, 1]. * @param Y The Y component of CIE 1931 xyY, typically in the range [0, 1]. * * @returns The X component of CIE 1931 XYZ. * @see https://en.wikipedia.org/wiki/CIE_1931_color_space#CIE_xyY_color_space */ export const toCIE1931XYZXFromCIE1931xyY = ( x: number, y: number, Y: number, ) => x * Y / y; /** * Calculates the Z component of CIE 1931 XYZ from CIE 1931 xyY. * * @param x The x component of CIE 1931 xyY, typically in the range [0, 1]. * @param y The y component of CIE 1931 xyY, typically in the range [0, 1]. * @param Y The Y component of CIE 1931 xyY, typically in the range [0, 1]. * * @returns The Z component of CIE 1931 XYZ. * @see https://en.wikipedia.org/wiki/CIE_1931_color_space#CIE_xyY_color_space */ export const toCIE1931XYZZFromCIE1931xyY = ( x: number, y: number, Y: number, ) => (1 - x - y) * Y / y;