Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.42266849867
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: AOKJCDRWBS5MK
darker: E (eq: True, dd: None), confidence: 0, worker: A3FRJKOYCI9Q53
darker: E (eq: True, dd: None), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1Z3RPPYNUUT0Z
darker: E (eq: True, dd: None), confidence: 2, worker: AKG5TLUQ2WWED
darker: E (eq: True, dd: None), confidence: 2, worker: A1NX9Q0EAOPYN3
(0: guessing, 1: probably, 2: definitely)