Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.171721723618
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 0, worker: A1YQ4Z1018RM1R
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1KH9UPH0D74QJ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2YM7PJ6OSMSR9
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1L3348HFKSWBJ (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A7S0IDTDA59QN
darker: E (eq: True, dd: None), confidence: 2, worker: A1TIL0S71V1JA0
darker: E (eq: True, dd: None), confidence: 2, worker: A3SOJXAUQE15S3
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2YYHNACJ8MFTU
(0: guessing, 1: probably, 2: definitely)