Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.218426513551
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: ATWGPR2A3M7WU (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3KUGXG2Y6X7BD
darker: E (eq: True, dd: None), confidence: 2, worker: A3FVPDNQQLDFZH
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3RJ8NZQ8BRTZM (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A26N0ZAW34UJUV
darker: E (eq: True, dd: None), confidence: 2, worker: AEJO933AJ3ZZH
darker: E (eq: True, dd: None), confidence: 2, worker: A1DDY93NB8NESD
(0: guessing, 1: probably, 2: definitely)