Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.102411333635
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: A7DN8E3C7IWLI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1D2E3QRL7O43T
darker: E (eq: True, dd: None), confidence: 2, worker: A2EKPA2DR5VSA8
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3DY9JPLPQUN1O
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1MQPBGSL800TL
darker: E (eq: True, dd: None), confidence: 2, worker: A38BNV13AV0S8Y
(0: guessing, 1: probably, 2: definitely)