Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.926932335318
Darker point darker score: 1.06473907468
darker: 2 (eq: False, dd: True), confidence: 2, worker: ARTQWWNFA7IOD
darker: 2 (eq: False, dd: True), confidence: 0, worker: A2YAM0NOL7EQNG
darker: E (eq: True, dd: None), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3GFISRU6V2MG5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A32M5FDKCPHMA
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3JJAFR9BRLG0
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1P2EVJXWYR94M (marked invalid)
(0: guessing, 1: probably, 2: definitely)