Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.881892412121
Darker point darker score: 0.977843789726
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2BW88QQ1YE12H
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3N21HBZFYFEXJ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NQZHW4RY6IDR (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A8Z9UWDTT8NAF
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3A45A5YUM61LK
darker: 2 (eq: False, dd: True), confidence: 2, worker: A266PK4BO3GBQC
(0: guessing, 1: probably, 2: definitely)