Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.349835932664
Darker point darker score: 0.252304971213
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1OTE7CRHWUOGJ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A99AY0L2AL77T
darker: 2 (eq: False, dd: True), confidence: 1, worker: A237FGJCPV99GJ
darker: 1 (eq: False, dd: False), confidence: 0, worker: A1NX9Q0EAOPYN3
darker: 2 (eq: False, dd: True), confidence: 0, worker: A2JVJ7J2MVGW9S
darker: E (eq: True, dd: None), confidence: 1, worker: A277RSAE4AKWW0
(0: guessing, 1: probably, 2: definitely)