Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -1.02041853917
Darker point darker score: 0.148479247549
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1NO4LG6KGOGFD
darker: 1 (eq: False, dd: True), confidence: 0, worker: A15XHPD9NN0LU2
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1OTE7CRHWUOGJ (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A22V9HXDWLO1I0
darker: 2 (eq: False, dd: False), confidence: 2, worker: A11KMASRERFP0V
darker: 1 (eq: False, dd: True), confidence: 2, worker: A221FSWO28B4YF
(0: guessing, 1: probably, 2: definitely)