Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.89004244589
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 1, worker: A11GWWAXRJQ6Y2 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q2HC4T5MHY93
darker: E (eq: True, dd: None), confidence: 2, worker: ANVXAMUEBGV8N
darker: E (eq: True, dd: None), confidence: 2, worker: A1YQ4Z1018RM1R
darker: E (eq: True, dd: None), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A106BTOUPN1KRV
darker: E (eq: True, dd: None), confidence: 2, worker: AZIODT1KEZZ3N
(0: guessing, 1: probably, 2: definitely)