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Replace precomputed LUV constants with compile-time expressions
author
Marius Gavrilescu
<marius@ieval.ro>
Wed, 17 Jun 2015 13:06:27 +0000
(16:06 +0300)
committer
Marius Gavrilescu
<marius@ieval.ro>
Wed, 17 Jun 2015 13:06:27 +0000
(16:06 +0300)
lib/Convert/Color/LUV.pm
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diff --git
a/lib/Convert/Color/LUV.pm
b/lib/Convert/Color/LUV.pm
index 886deb736f1119adbd19c136ead0e7e2d3ef7424..76d9b8f45832c9d1eb9118d5d05842dc7389bda9 100644
(file)
--- a/
lib/Convert/Color/LUV.pm
+++ b/
lib/Convert/Color/LUV.pm
@@
-10,11
+10,16
@@
use Convert::Color::XYZ;
our $VERSION = '0.001';
use constant +{ ## no critic (Capitalization)
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');
};
__PACKAGE__->register_color_space('luv');
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