J = VL_XYZ2LUV(I) converts the image I in XYZ format to the image J in Luv format.
J = VL_XYZ2LUV(I,IL) uses the specified illuminant. The following illuminant are supported: A, B, C, E, D50, D55, D65, D75, D93. IL is the name of the illuminant.
See also: VL_XYZ2LAB(), VL_HELP().