Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.879770962791
Darker point darker score: -0.882875659656
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3UC4JITM1QD1M
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2AH0I3IAWWNX7
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1E4M8ET704NBF
darker: 2 (eq: False, dd: False), confidence: 2, worker: A18WZ06GBK6FGZ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1N274L13ZKKI5
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3TVDFJ22T1FFN (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3LSDO3YPF1SFT
(0: guessing, 1: probably, 2: definitely)