Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.044797391791
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2925T8JYCYNN3 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1W02OZN6J9J0H
darker: E (eq: True, dd: None), confidence: 2, worker: A1G05O3HM7DNVZ
darker: E (eq: True, dd: None), confidence: 0, worker: A167L9XCC3KHPF
darker: 2 (eq: False, dd: True), confidence: 2, worker: A106BTOUPN1KRV
darker: E (eq: True, dd: None), confidence: 2, worker: A3QTG4DHHV2KD6
(0: guessing, 1: probably, 2: definitely)