Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.149680302285
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 1, worker: ARW2F8HD8VOLX (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1E6RS45GUAFC3
darker: E (eq: True, dd: None), confidence: 0, worker: A1GM94HPPS4SS0
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3CB0SM114NJVL
darker: E (eq: True, dd: None), confidence: 2, worker: A3LSDO3YPF1SFT
darker: E (eq: True, dd: None), confidence: 2, worker: A3760PCQD2MPIO
(0: guessing, 1: probably, 2: definitely)