Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.917323395948
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A1E4M8ET704NBF
darker: E (eq: True, dd: None), confidence: 0, worker: A3TVDFJ22T1FFN (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1N274L13ZKKI5
darker: E (eq: True, dd: None), confidence: 2, worker: A2AH0I3IAWWNX7
darker: E (eq: True, dd: None), confidence: 2, worker: A3UC4JITM1QD1M
darker: E (eq: True, dd: None), confidence: 2, worker: A3LSDO3YPF1SFT
darker: 2 (eq: False, dd: True), confidence: 2, worker: A18WZ06GBK6FGZ (marked invalid)
(0: guessing, 1: probably, 2: definitely)