Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.05793595627
Darker point darker score: 0.223901853436
darker: 2 (eq: False, dd: True), confidence: 0, worker: A1WRANKL1HRGYW
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3RXVRZ0M163C0
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2JVUSHTNJ2WFK
darker: 2 (eq: False, dd: True), confidence: 2, worker: AH7WFV2TQYEW0 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1IJ5RKJ4MD2AM (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2CXAWVGQ6QQ2V
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1DDY93NB8NESD
(0: guessing, 1: probably, 2: definitely)