Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.943713238178
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: AI0LPDLUHKFMT (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: A7WI4XSAIFD7J (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3MWV912LNFD67
darker: 1 (eq: False, dd: False), confidence: 0, worker: A2KGL2FXIG2IQM (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A179VVX2QGAJK0
darker: E (eq: True, dd: None), confidence: 2, worker: A3128LS551616K
darker: E (eq: True, dd: None), confidence: 2, worker: A1JM1I8YRTOQ5Y
darker: E (eq: True, dd: None), confidence: 2, worker: A3GTLCTTVIMPOL
(0: guessing, 1: probably, 2: definitely)