Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.548061528543
Darker point darker score: -0.906419097738
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2G053HOWRCZZ6 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 0, worker: A3UC4JITM1QD1M
darker: E (eq: True, dd: None), confidence: 1, worker: A1Y5DMCQYLVL74
darker: 2 (eq: False, dd: False), confidence: 1, worker: AMDW925P9IY2O
darker: 2 (eq: False, dd: False), confidence: 2, worker: A341LHR7178BUY
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1XA2WJ50VR7KQ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2C5N3IQEP0KWA (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3PKLLRKQ7VUVN (marked invalid)
(0: guessing, 1: probably, 2: definitely)