Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.448021738296
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A3UC4JITM1QD1M
darker: 2 (eq: False, dd: False), confidence: 2, worker: A6KUVG49ZZ40M (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 0, worker: AUJPYSYU7YL5
darker: E (eq: True, dd: None), confidence: 2, worker: A2FQSVTAOL5GUC
darker: E (eq: True, dd: None), confidence: 2, worker: A1KITOCUU7GERN
darker: E (eq: True, dd: None), confidence: 1, worker: A1NPKI9KKWOI2P
darker: E (eq: True, dd: None), confidence: 2, worker: AW0K78T4I2T72
darker: E (eq: True, dd: None), confidence: 2, worker: A3O8YXPG1HGUH0
darker: E (eq: True, dd: None), confidence: 2, worker: A1JHVZIC3FH9LG
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)