Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.256839025144
Darker point darker score: -0.894520773436
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3I546VTF7B6YX
darker: 1 (eq: False, dd: False), confidence: 1, worker: A266PK4BO3GBQC
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1E9VI5RSZI31F
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
(0: guessing, 1: probably, 2: definitely)