Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.163998847217
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: False), confidence: 0, worker: A3SOJXAUQE15S3
darker: E (eq: True, dd: None), confidence: 2, worker: A2S9J5W3VOD0M6
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1ZGOZQF2VZ0X9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
darker: E (eq: True, dd: None), confidence: 2, worker: A1Z3RPPYNUUT0Z
darker: E (eq: True, dd: None), confidence: 2, worker: ATWGPR2A3M7WU (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1SRPH3BGCHUOA
(0: guessing, 1: probably, 2: definitely)