Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.794124897076
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A2925T8JYCYNN3 (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A2H4ON6BUHMY1L (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1RHI1ARUZZKGP
darker: E (eq: True, dd: None), confidence: 2, worker: A1XVZCQ983ETMR
darker: E (eq: True, dd: None), confidence: 2, worker: A2JVJ7J2MVGW9S
darker: E (eq: True, dd: None), confidence: 2, worker: A2TP6GDF71HM4M
darker: E (eq: True, dd: None), confidence: 2, worker: A1NM7ZPZ3NH412
(0: guessing, 1: probably, 2: definitely)