Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.267696485679
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A360B58589TBUS (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A14P86I4JB46ET
darker: 2 (eq: False, dd: True), confidence: 2, worker: A122E99M2DQY1G (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1YQ4Z1018RM1R
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1XVZCQ983ETMR
darker: E (eq: True, dd: None), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A10QRO2MWG7AZ7
darker: E (eq: True, dd: None), confidence: 2, worker: A1DDY93NB8NESD
(0: guessing, 1: probably, 2: definitely)