Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.0269712386614
Darker point darker score: 0.0576141635028
darker: 1 (eq: False, dd: True), confidence: 1, worker: A14BFNH96MJQH
darker: 1 (eq: False, dd: True), confidence: 0, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1DDY93NB8NESD
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3RLTUXIM8TU3K (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3DY9JPLPQUN1O
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3QJ53C8CUTJTS (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)