Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.894438332348
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2H4ON6BUHMY1L (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A266KTWY0HBD2F
darker: E (eq: True, dd: None), confidence: 2, worker: A3UC4JITM1QD1M
darker: E (eq: True, dd: None), confidence: 2, worker: A3RZMD0GPKZBJ5
darker: E (eq: True, dd: None), confidence: 2, worker: A106BTOUPN1KRV
(0: guessing, 1: probably, 2: definitely)