Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.02533806602
Darker point darker score: 0.290484055458
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3Q2HC4T5MHY93
darker: 2 (eq: False, dd: True), confidence: 2, worker: AYJ67827HW8LL
darker: 1 (eq: False, dd: False), confidence: 0, worker: A2YAM0NOL7EQNG
darker: 2 (eq: False, dd: True), confidence: 1, worker: A15XHPD9NN0LU2
darker: E (eq: True, dd: None), confidence: 0, worker: A18YH2N9M2P95T (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A14P86I4JB46ET
(0: guessing, 1: probably, 2: definitely)