Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.883321071737
Darker point darker score: 0.920786093449
darker: 1 (eq: False, dd: True), confidence: 2, worker: A168LFJNV9DSTS
darker: 1 (eq: False, dd: True), confidence: 0, worker: A1TKGFJSMVR2RP
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3QTG4DHHV2KD6
darker: 1 (eq: False, dd: True), confidence: 0, worker: A2A42CU48PN8CX
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3S6JT56CCUSE2 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3LI0O659I8GFX
darker: 1 (eq: False, dd: True), confidence: 2, worker: AJSZEUBV1O00K (marked invalid)
(0: guessing, 1: probably, 2: definitely)