Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.230228658664
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 1, worker: A3VEMG1EEBJHWD
darker: E (eq: True, dd: None), confidence: 0, worker: AI0LPDLUHKFMT (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: A12ABO48ZV09LR (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3I546VTF7B6YX
darker: E (eq: True, dd: None), confidence: 2, worker: A1E4M8ET704NBF
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3JJAFR9BRLG0
darker: E (eq: True, dd: None), confidence: 2, worker: A3DKW5X4Y1Z6UD
darker: E (eq: True, dd: None), confidence: 0, worker: A35Y9YHW91OY2U (marked invalid)
(0: guessing, 1: probably, 2: definitely)