Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.27066661134
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 2, worker: AWL4VD8C90KJR (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A2EPRPJA681I8X
darker: 1 (eq: False, dd: True), confidence: 1, worker: A14BFNH96MJQH
darker: E (eq: True, dd: None), confidence: 0, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A38TQC40K87G6I (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3NWQ0535HAXUD
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3PKLLRKQ7VUVN (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1DDY93NB8NESD
darker: E (eq: True, dd: None), confidence: 2, worker: A1NJB5LJJPC7AS
(0: guessing, 1: probably, 2: definitely)