Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0459576478781
Darker point darker score: 0.913357556779
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1KF93C9NTOP42
darker: 2 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AUJPYSYU7YL5
darker: 2 (eq: False, dd: True), confidence: 1, worker: AKJ6IXN6XE7OQ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1NM7ZPZ3NH412
darker: E (eq: True, dd: None), confidence: 2, worker: A3UC4JITM1QD1M
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)