Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.238433691827
Darker point darker score: 0.1383631141
darker: E (eq: True, dd: None), confidence: 1, worker: A1EY3KWGUA9A1N
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 0, worker: ADPVKKFJ886DJ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3A45A5YUM61LK
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2D6GU31XFG5LY
darker: E (eq: True, dd: None), confidence: 2, worker: A7S0IDTDA59QN
(0: guessing, 1: probably, 2: definitely)