Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.885046500925
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1RU9BQLDZ1DSY (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A234WZ4KX8IW07
darker: E (eq: True, dd: None), confidence: 0, worker: AGQOUDGB4N87B
darker: E (eq: True, dd: None), confidence: 2, worker: AE808DQDYM9F
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1XVZCQ983ETMR
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2C5N3IQEP0KWA (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1A50D6DABL6IK
(0: guessing, 1: probably, 2: definitely)