Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.940075479863
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A3P8OM5PDCFZNE
darker: E (eq: True, dd: None), confidence: 2, worker: A7WI4XSAIFD7J (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: AQD91RFHV1WNE (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A36ABEGFKRJC2O
darker: E (eq: True, dd: None), confidence: 2, worker: AQAKW9NW6Z61T
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
darker: E (eq: True, dd: None), confidence: 2, worker: A32M5FDKCPHMA
(0: guessing, 1: probably, 2: definitely)