Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.289905951161
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2RVSBEHUCNC6K (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: AMV1QZDL5K6PG
darker: E (eq: True, dd: None), confidence: 2, worker: A3RQN5RZD1N2KP
darker: 1 (eq: False, dd: True), confidence: 1, worker: AO6J6WQVRE5YZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AH7WFV2TQYEW0 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: APROFW08F7Z34
darker: E (eq: True, dd: None), confidence: 2, worker: A1OA3O78YDXGZO
darker: E (eq: True, dd: None), confidence: 2, worker: A1SNF5XJQ0205C
(0: guessing, 1: probably, 2: definitely)