Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.403278568139
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 2, worker: ATPCAF2RU1G4C (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3FVPDNQQLDFZH
darker: E (eq: True, dd: None), confidence: 2, worker: AW0K78T4I2T72
darker: E (eq: True, dd: None), confidence: 1, worker: A18ZNSHNYROUC0
darker: E (eq: True, dd: None), confidence: 0, worker: A3799NWTIYKCEV
darker: E (eq: True, dd: None), confidence: 0, worker: A1JEDFDBWHLA1F
darker: 2 (eq: False, dd: False), confidence: 0, worker: A21TA9DWNPHPBG (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2Q5IX1YGGLQML (marked invalid)
(0: guessing, 1: probably, 2: definitely)