Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0229756459411
Darker point darker score: -0.888011229081
darker: E (eq: True, dd: None), confidence: 1, worker: A3799NWTIYKCEV
darker: 2 (eq: False, dd: False), confidence: 2, worker: AE808DQDYM9F
darker: E (eq: True, dd: None), confidence: 2, worker: A1KITOCUU7GERN
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: 2 (eq: False, dd: False), confidence: 1, worker: A11GWWAXRJQ6Y2 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2Q1A5H715C3EK
darker: E (eq: True, dd: None), confidence: 1, worker: A234WZ4KX8IW07
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3IPKVTS5K06LP
(0: guessing, 1: probably, 2: definitely)