Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.169330932179
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 0, worker: A3RXVRZ0M163C0
darker: E (eq: True, dd: None), confidence: 1, worker: A2MBCZMW1IBAK
darker: E (eq: True, dd: None), confidence: 2, worker: A235ULDV4XUVDM
darker: E (eq: True, dd: None), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AQD91RFHV1WNE (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: ANE1T9B3JJAS5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3B0AB2C9SIHN
(0: guessing, 1: probably, 2: definitely)