Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.210805927436
Darker point darker score: 0.00720416433269
darker: 2 (eq: False, dd: False), confidence: 2, worker: AQAKW9NW6Z61T
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1Y5DMCQYLVL74
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 0, worker: A3UC4JITM1QD1M
darker: 1 (eq: False, dd: True), confidence: 0, worker: A2OF0GTKWKM2T5
darker: E (eq: True, dd: None), confidence: 2, worker: A2A42CU48PN8CX
darker: 1 (eq: False, dd: True), confidence: 2, worker: A6KUVG49ZZ40M (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1ZGOZQF2VZ0X9 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: AE808DQDYM9F
(0: guessing, 1: probably, 2: definitely)