Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.173472619319
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1H10UJNXTJDX4
darker: E (eq: True, dd: None), confidence: 1, worker: A277RSAE4AKWW0
darker: E (eq: True, dd: None), confidence: 2, worker: A2EKPA2DR5VSA8
darker: E (eq: True, dd: None), confidence: 1, worker: A3GFISRU6V2MG5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2FNC7KTCBF9IT
darker: E (eq: True, dd: None), confidence: 2, worker: A1KH9UPH0D74QJ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A106BTOUPN1KRV
(0: guessing, 1: probably, 2: definitely)