Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -1.08938157316
Darker point darker score: -1.02595848687
darker: 2 (eq: False, dd: False), confidence: 1, worker: ABWVRVG5B5OMX (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: AWL4VD8C90KJR (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: AW0K78T4I2T72
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3IPKVTS5K06LP
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1EY3KWGUA9A1N
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2C5N3IQEP0KWA (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3P9BBIGUZ53BX (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A32XWNZW2DQ6UZ
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2VVSQ1PSXKGVE
(0: guessing, 1: probably, 2: definitely)