Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.894909034638
Darker point darker score: 0.249713274574
darker: 2 (eq: False, dd: True), confidence: 1, worker: A14S7A62C87LTI
darker: 2 (eq: False, dd: True), confidence: 2, worker: AL40D2AAH2VB2
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1SRPH3BGCHUOA
darker: 2 (eq: False, dd: True), confidence: 2, worker: AQD91RFHV1WNE (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: A2OF0GTKWKM2T5
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2BG6O1B5B3F78
(0: guessing, 1: probably, 2: definitely)