Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.907921116908
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3P9BBIGUZ53BX (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AZ9A137H25EDX
darker: E (eq: True, dd: None), confidence: 2, worker: A1JEDFDBWHLA1F
darker: E (eq: True, dd: None), confidence: 2, worker: A2ZRJMJTE6ID97
darker: E (eq: True, dd: None), confidence: 2, worker: APLPGURGFU8KN
darker: E (eq: True, dd: None), confidence: 2, worker: A1WRANKL1HRGYW
(0: guessing, 1: probably, 2: definitely)