Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.0514926850389
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1NO4LG6KGOGFD
darker: 1 (eq: False, dd: True), confidence: 0, worker: A2AAWTFFL0ZXEK (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3SOJXAUQE15S3
darker: 1 (eq: False, dd: True), confidence: 2, worker: ATWGPR2A3M7WU (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3RJ8NZQ8BRTZM (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3KUGXG2Y6X7BD
darker: E (eq: True, dd: None), confidence: 2, worker: A1DDY93NB8NESD
darker: E (eq: True, dd: None), confidence: 2, worker: AEHEZAYCPWF0E
(0: guessing, 1: probably, 2: definitely)