Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.936330990803
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3FZ7C7M6VD21M (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3NWQ0535HAXUD
darker: E (eq: True, dd: None), confidence: 2, worker: A1IOJ2LGMGISYM
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3FZ7C7M6VD21M (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: AGDDGSV1IQ0Z4
darker: 1 (eq: False, dd: True), confidence: 2, worker: A18WZ06GBK6FGZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1NJB5LJJPC7AS
darker: E (eq: True, dd: None), confidence: 1, worker: AWL4VD8C90KJR (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2YYHNACJ8MFTU
(0: guessing, 1: probably, 2: definitely)