Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.32642496919
Darker point darker score: 0.150199622587
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2KGL2FXIG2IQM (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3IXQP73TWQX0D
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3VETGL4OCTWD5
darker: 1 (eq: False, dd: False), confidence: 2, worker: ADJMZSRMFT3RG
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3VO5CW9ZY22MZ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1JEDFDBWHLA1F
darker: 2 (eq: False, dd: True), confidence: 2, worker: A18WZ06GBK6FGZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2EY9GDVA7L8YM (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A35Y9YHW91OY2U (marked invalid)
(0: guessing, 1: probably, 2: definitely)