our $VERSION = '0.001';
use constant +{ ## no critic (Capitalization)
- KAPPA => 903.2962962,
- EPS => 0.0088564516,
+ KAPPA => (29/3) ** 3,
+ EPS => (6/29) ** 3,
- REF_U => 0.19783000664283,
- REF_V => 0.46831999493879,
+ REF_X => 3127/3290,
+ REF_Z => 3583/3290,
+};
+
+use constant +{ ## no critic (Capitalization)
+ REF_U => 4 * REF_X / (REF_X + 15 + 3 * REF_Z),
+ REF_V => 9 / (REF_X + 15 + 3 * REF_Z),
};
__PACKAGE__->register_color_space('luv');