Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.888149894102
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A1NJB5LJJPC7AS
darker: E (eq: True, dd: None), confidence: 1, worker: A1KWFRKBCLPQXZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A3JB8CDV1SF2TH
darker: E (eq: True, dd: None), confidence: 1, worker: A3O8YXPG1HGUH0
darker: E (eq: True, dd: None), confidence: 0, worker: A3163PFOUKXQKA
darker: E (eq: True, dd: None), confidence: 2, worker: A8DFFGPH3G3V5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1BTE6I49HJW2V (marked invalid)
(0: guessing, 1: probably, 2: definitely)