Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.955319759821
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2XU16B4I9XQG5 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1AXIY3LLO186R
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2925T8JYCYNN3 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3FVPDNQQLDFZH
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3QTG4DHHV2KD6
darker: E (eq: True, dd: None), confidence: 2, worker: A27H0BKXDPJ543
darker: E (eq: True, dd: None), confidence: 2, worker: A1136V0RZUR5TO
(0: guessing, 1: probably, 2: definitely)