Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.15814844245
Darker point darker score: -0.157679471526
darker: 2 (eq: False, dd: False), confidence: 1, worker: AX720MTAR52TX
darker: 2 (eq: False, dd: False), confidence: 2, worker: ATWGPR2A3M7WU (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3ICG6AUFB4AT
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 0, worker: A3U65EZ76A3HCN
darker: E (eq: True, dd: None), confidence: 0, worker: A266KTWY0HBD2F
darker: 2 (eq: False, dd: False), confidence: 1, worker: A26N0ZAW34UJUV
(0: guessing, 1: probably, 2: definitely)