Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.960335238449
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1JWOUVUL09Y8D (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 0, worker: AWL4VD8C90KJR (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2EKPA2DR5VSA8
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
darker: E (eq: True, dd: None), confidence: 2, worker: A1N274L13ZKKI5
darker: E (eq: True, dd: None), confidence: 1, worker: AMDW925P9IY2O
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2G053HOWRCZZ6 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: AY4PUTE2I6K3C (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A28910KJWKMQMO (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2YYHNACJ8MFTU
(0: guessing, 1: probably, 2: definitely)