Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.273473956254
Darker point darker score: -0.0783543020391
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1ZGOZQF2VZ0X9 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1WP5F7NLRWLKW
darker: 2 (eq: False, dd: False), confidence: 2, worker: A237FGJCPV99GJ
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1Y5DMCQYLVL74
darker: 1 (eq: False, dd: True), confidence: 2, worker: ALY6VKHUADU6F
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2S2GW07EAHPNA
darker: E (eq: True, dd: None), confidence: 1, worker: A234WZ4KX8IW07
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: AKLZPOBB3YA33
(0: guessing, 1: probably, 2: definitely)