Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.554512770418
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 1, worker: A1ZH2G3ICIOPT2 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A14P86I4JB46ET
darker: E (eq: True, dd: None), confidence: 2, worker: A1NZVXB0S8DR04
darker: E (eq: True, dd: None), confidence: 2, worker: AIKBREX7SEPXE
darker: E (eq: True, dd: None), confidence: 1, worker: A167L9XCC3KHPF
darker: E (eq: True, dd: None), confidence: 1, worker: A3GFISRU6V2MG5
darker: E (eq: True, dd: None), confidence: 2, worker: A27H0BKXDPJ543
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
(0: guessing, 1: probably, 2: definitely)