Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.932327270986
Darker point darker score: -0.117644769558
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1GVN53BJRWKD2
darker: 1 (eq: False, dd: True), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: AO2JIXLS5MIC5 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A266KTWY0HBD2F
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3NBD6P0INJB4G
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2KGL2FXIG2IQM (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3O8YXPG1HGUH0
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2A42CU48PN8CX
(0: guessing, 1: probably, 2: definitely)