Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.346421689269
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: A14BFNH96MJQH
darker: E (eq: True, dd: None), confidence: 2, worker: A106ZSJP3CLBE4
darker: 1 (eq: False, dd: True), confidence: 2, worker: ARW2F8HD8VOLX (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3QTG4DHHV2KD6
darker: E (eq: True, dd: None), confidence: 2, worker: A1KH9UPH0D74QJ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A167L9XCC3KHPF
darker: E (eq: True, dd: None), confidence: 2, worker: AO1T9KG7VR0P5
(0: guessing, 1: probably, 2: definitely)