Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.201658636809
Darker point darker score: 0.956769197783
darker: 2 (eq: False, dd: True), confidence: 2, worker: A11J5NDVR49DET
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1SRPH3BGCHUOA
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2Q1A5H715C3EK
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1ZCYJOVB9YEOW (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3P8OM5PDCFZNE
darker: 2 (eq: False, dd: True), confidence: 2, worker: A7S0IDTDA59QN
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
(0: guessing, 1: probably, 2: definitely)