Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.0804697300279
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A1HJHY8RW8BJ27
darker: 2 (eq: False, dd: False), confidence: 0, worker: A3QW1C79IH4GOG
darker: E (eq: True, dd: None), confidence: 2, worker: AE6N096CSI5HT
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1KH9UPH0D74QJ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3QTG4DHHV2KD6
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
(0: guessing, 1: probably, 2: definitely)