Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.0617473683572
Darker point darker score: -0.879732282685
darker: 1 (eq: False, dd: False), confidence: 1, worker: A168LFJNV9DSTS
darker: 1 (eq: False, dd: False), confidence: 0, worker: A106BTOUPN1KRV
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1L3348HFKSWBJ (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A3D2AKUFNQD73Y
darker: 1 (eq: False, dd: False), confidence: 2, worker: AE808DQDYM9F
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1N274L13ZKKI5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
(0: guessing, 1: probably, 2: definitely)