Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.410725561891
Darker point darker score: -0.96197876329
darker: 1 (eq: False, dd: False), confidence: 1, worker: A2H4ON6BUHMY1L (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: A1H10UJNXTJDX4
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1KH9UPH0D74QJ (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2Q1A5H715C3EK
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1GY0P2ZEJ1RK7
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1136V0RZUR5TO
darker: E (eq: True, dd: None), confidence: 1, worker: A277RSAE4AKWW0
(0: guessing, 1: probably, 2: definitely)