Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.947334446038
Darker point darker score: -0.291828441247
darker: 2 (eq: False, dd: True), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: AS47ZFZ2M16E1
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3IPKVTS5K06LP
darker: 1 (eq: False, dd: False), confidence: 1, worker: A266KTWY0HBD2F
darker: 1 (eq: False, dd: False), confidence: 2, worker: AG5PRN6LLI9E1
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2A42CU48PN8CX
(0: guessing, 1: probably, 2: definitely)