Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.904771023959
Darker point darker score: -0.226087738646
darker: 2 (eq: False, dd: False), confidence: 1, worker: A234WZ4KX8IW07
darker: 2 (eq: False, dd: False), confidence: 0, worker: A3Q2HC4T5MHY93
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1ZH2G3ICIOPT2 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2OF0GTKWKM2T5
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3PEMQP28HYGHU
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3A45A5YUM61LK
(0: guessing, 1: probably, 2: definitely)