Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.895151348051
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: AI90ZNJJ543AP (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2KJ983WWTEK4L
darker: E (eq: True, dd: None), confidence: 2, worker: AAY0XUI4OLPOK
darker: E (eq: True, dd: None), confidence: 2, worker: A1TM1ZFU4OIPTD
darker: E (eq: True, dd: None), confidence: 2, worker: AZ9A137H25EDX
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)