The cieuv2xy function transforms CIE 1960 chromaticity coordinates u and v to CIE 1931 chromaticity coordinates x and y, using the following transformation:
x = \frac{3u}{2u - 8v + 4}\\ y = \frac{2v}{2u - 8v + 4}Any errors in the data set or in results generated with the Lighting Toolbox are not in the liability of the CIE nor me, see licence.
Usage:
[x,y] = cieuv2xy(u,v)
Where:
| Parameter | Description |
x and y | Are the returned CIE 1931 x and y chromaticity coordinates. |
u and v | Are the given CIE 1960 u and v chromaticity coordinates. |
It is possible to transform several chromaticity coordinates in one function call, using a 1\times n or n\times 1 vector as input.
Examples
Transform CIE 1960 chromaticity coordinates u and v to CIE 1931 chromaticity coordinates x and y and back:
u = 0.2349; v = 0.3035; [x,y] = cieuv2xy(u,v) [u,v] = ciexy2uv(x,y)
See also: ciexy2uv
Result:
x = 0.3451 y = 0.2973 u = 0.2349 v = 0.3035
Transform several CIE 1960 chromaticity coordinates u and v to CIE 1931 chromaticity coordinates x and y:
u = [0.2041 0.1800 0.2499]; v = [0.3060 0.3149 0.3060]; [x,y] = cieuv2xy(u,v)
Result:
x = 0.3124 0.2934 0.3654 y = 0.3122 0.3421 0.2983
Reference