Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.308227139985
Darker point darker score: -0.0738030314425
darker: 2 (eq: False, dd: False), confidence: 0, worker: A116SF9QIZ854X
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1GM94HPPS4SS0
darker: 1 (eq: False, dd: True), confidence: 0, worker: AH8FQGOADPCST (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1OTE7CRHWUOGJ (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 1, worker: AY2CT54659MP
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A2Q1A5H715C3EK
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3IPKVTS5K06LP
(0: guessing, 1: probably, 2: definitely)