Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.948447571907
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: False), confidence: 2, worker: AQD91RFHV1WNE (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A36ABEGFKRJC2O
darker: E (eq: True, dd: None), confidence: 2, worker: A3PHP9TTAVN4Y4
darker: E (eq: True, dd: None), confidence: 2, worker: A3FVPDNQQLDFZH
darker: 2 (eq: False, dd: True), confidence: 2, worker: A122E99M2DQY1G (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: APLPGURGFU8KN
darker: E (eq: True, dd: None), confidence: 2, worker: A1ABA3S1BGNCWW
(0: guessing, 1: probably, 2: definitely)