Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.0152785805184
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1JF9ZNXWK5QZU (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2ZRJMJTE6ID97
darker: 1 (eq: False, dd: True), confidence: 2, worker: A251KVXCS8E3C
darker: 1 (eq: False, dd: True), confidence: 0, worker: A1GF29TP5AVQ49
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2KFG0H3IXPFM9 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1NZVXB0S8DR04
darker: E (eq: True, dd: None), confidence: 0, worker: A2631BM7J7H37K
(0: guessing, 1: probably, 2: definitely)