Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0726824976787
Darker point darker score: -0.127586489907
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2EKPA2DR5VSA8
darker: 1 (eq: False, dd: True), confidence: 0, worker: AS47ZFZ2M16E1
darker: 1 (eq: False, dd: True), confidence: 2, worker: A7DN8E3C7IWLI (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 0, worker: A35Y9YHW91OY2U (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3A45A5YUM61LK
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3A45A5YUM61LK
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)