Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.198448826218
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: AWL4VD8C90KJR (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: AE6N096CSI5HT
darker: 2 (eq: False, dd: True), confidence: 1, worker: A14P86I4JB46ET
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AO2JIXLS5MIC5 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: APWBUB0PDRLS5
darker: E (eq: True, dd: None), confidence: 2, worker: A1WRANKL1HRGYW
darker: E (eq: True, dd: None), confidence: 2, worker: AU4FF0366TBAR (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2A1D52ZPSW6L9
(0: guessing, 1: probably, 2: definitely)