Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.0669751679687
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 1, worker: AAOTQL1SCAC03
darker: E (eq: True, dd: None), confidence: 1, worker: A1RD79V8R2YXZP
darker: 2 (eq: False, dd: False), confidence: 2, worker: AGQOUDGB4N87B
darker: E (eq: True, dd: None), confidence: 1, worker: A1S4DGZRQAQJT5
darker: E (eq: True, dd: None), confidence: 2, worker: AU4FF0366TBAR (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3QTG4DHHV2KD6
darker: E (eq: True, dd: None), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
(0: guessing, 1: probably, 2: definitely)