Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.151562921173
Darker point darker score: 0.893179404594
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1YQ4Z1018RM1R
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1PCTP576OW35H (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A14MXJ8GNYDWX1
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3GTIIFSMHAKRZ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3U65EZ76A3HCN
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3RLTUXIM8TU3K (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3FVPDNQQLDFZH
(0: guessing, 1: probably, 2: definitely)