Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.881564763446
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1O61JHO0LUZRI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1TKGFJSMVR2RP
darker: E (eq: True, dd: None), confidence: 2, worker: AI0LPDLUHKFMT (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2Q5IX1YGGLQML (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3NWQ0535HAXUD
darker: E (eq: True, dd: None), confidence: 2, worker: AW0K78T4I2T72
darker: E (eq: True, dd: None), confidence: 2, worker: A1XVZCQ983ETMR
darker: E (eq: True, dd: None), confidence: 2, worker: A390HYGLCX40HE
(0: guessing, 1: probably, 2: definitely)