Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.369618110021
Darker point darker score: 0.183120210743
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1YQ4Z1018RM1R
darker: 1 (eq: False, dd: False), confidence: 0, worker: A36D1YU9L1AF0Y
darker: E (eq: True, dd: None), confidence: 0, worker: A3PIU3R3IE6VDW
darker: E (eq: True, dd: None), confidence: 2, worker: A2RX3MRFR56U4Q (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A15XHPD9NN0LU2
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2V83AS7LPINAN
(0: guessing, 1: probably, 2: definitely)