Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.482095187214
Darker point darker score: -0.275599573832
darker: 1 (eq: False, dd: True), confidence: 2, worker: AOKJCDRWBS5MK
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1L3348HFKSWBJ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1ZH2G3ICIOPT2 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NO4LG6KGOGFD
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1Y5DMCQYLVL74
darker: E (eq: True, dd: None), confidence: 2, worker: A2Q1A5H715C3EK
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3HO0DT978POJ2
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3799NWTIYKCEV
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1DDY93NB8NESD
(0: guessing, 1: probably, 2: definitely)