Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.130728174539
Darker point darker score: 0.142457981862
darker: E (eq: True, dd: None), confidence: 1, worker: AIKBREX7SEPXE
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3KUGXG2Y6X7BD
darker: 2 (eq: False, dd: True), confidence: 1, worker: A234WZ4KX8IW07
darker: E (eq: True, dd: None), confidence: 1, worker: AUD2Y1IOZ0GN4 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: A1MQPBGSL800TL
darker: 1 (eq: False, dd: False), confidence: 2, worker: ABMM7PTIH9EZY
(0: guessing, 1: probably, 2: definitely)