Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0499608945574
Darker point darker score: -1.08476234841
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3IPKVTS5K06LP
darker: 2 (eq: False, dd: False), confidence: 2, worker: ACGF1YHQCI2Z6
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: False), confidence: 2, worker: A23RB1Y4ANXQLS
darker: E (eq: True, dd: None), confidence: 2, worker: A2ZRJMJTE6ID97
darker: 2 (eq: False, dd: False), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1DDY93NB8NESD
darker: 2 (eq: False, dd: False), confidence: 2, worker: A237FGJCPV99GJ
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2DWQF4ZHHBLOW
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
(0: guessing, 1: probably, 2: definitely)