Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.136923056653
Darker point darker score: 0.979662642401
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UIVQJXY62XU8
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3IXQP73TWQX0D
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AR50UBGSH10FJ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AKG5TLUQ2WWED
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: AFO6OUDRVZ317
(0: guessing, 1: probably, 2: definitely)