Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.368966373942
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2KFG0H3IXPFM9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1H30MGYWO1MWS (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2ZVWE8XJDWNAD
darker: E (eq: True, dd: None), confidence: 1, worker: A3JB8CDV1SF2TH
darker: 1 (eq: False, dd: True), confidence: 0, worker: A21TA9DWNPHPBG (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AW0K78T4I2T72
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3799NWTIYKCEV
darker: E (eq: True, dd: None), confidence: 2, worker: A1SRPH3BGCHUOA
(0: guessing, 1: probably, 2: definitely)