Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.229073759391
Darker point darker score: -1.02318373045
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1BDJFRSELMRDT
darker: 1 (eq: False, dd: False), confidence: 2, worker: A14MXJ8GNYDWX1
darker: E (eq: True, dd: None), confidence: 1, worker: AET2U31SXUAPM
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1A50D6DABL6IK
darker: 1 (eq: False, dd: False), confidence: 2, worker: AVQ23YRFWZKHH (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2JTDTGLA7IZ0L
(0: guessing, 1: probably, 2: definitely)