Vocabulary
colors.distances

Inputs
color1an object
color2an object


Outputs
distancean object


Definition


:: CMC-l:c ( color1 color2 -- distance )
color1 >laba :> lab1 color2 >laba :> lab2 lab1 lab2
[ a>> ] bi@ :> ( a1 a2 ) lab1 lab2 [ b>> ] bi@
:> ( b1 b2 ) color1 >LCHab :> lch1 color2 >LCHab :> lch2
lch1 lch2 [ l>> ] bi@ :> ( l1 l2 ) lch1 lch2 [ c>> ] bi@
:> ( c1 c2 ) lch1 lch2 [ h>> ] bi@ :> ( h1 h2 ) a2 a1 -
:> da b2 b1 - :> db c2 c1 - :> dc l2 l1 -
:> dl da sq db sq + dc sq - sqrt :> dh l1 16 <
[ 0.511 ] [ l1 [ 0.040975 * ] [ 0.01765 * 1 + ] bi / ] if
:> sl c1 [ 0.0638 * ] [ 0.0131 * 1 + ] bi / 0.638 +
:> sc c1 4 ^ dup 1900 + / sqrt :> F h1 164 345 between?
[ h1 168 + cosd 0.2 * abs 0.5600000000000001 + ]
[ h1 35 + cosd 0.4 * abs 0.36 + ] if :> T F T * 1 ~29 more~
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