Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.142548951607
Darker point darker score: -0.886204511999
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2KJ983WWTEK4L
darker: E (eq: True, dd: None), confidence: 1, worker: A30M7MYW1BHQN1
darker: 1 (eq: False, dd: False), confidence: 0, worker: A3DKW5X4Y1Z6UD
darker: 1 (eq: False, dd: False), confidence: 0, worker: A2ZRJMJTE6ID97
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1RU9BQLDZ1DSY (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AFO6OUDRVZ317
(0: guessing, 1: probably, 2: definitely)