Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.0172053708421
Darker point darker score: -0.116022126007
darker: E (eq: True, dd: None), confidence: 2, worker: A2Q1A5H715C3EK
darker: 2 (eq: False, dd: True), confidence: 2, worker: AQD91RFHV1WNE (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: ATN5M0LQEEYGU
darker: E (eq: True, dd: None), confidence: 2, worker: A2ZRJMJTE6ID97
darker: 1 (eq: False, dd: False), confidence: 2, worker: A38BNV13AV0S8Y
darker: 2 (eq: False, dd: True), confidence: 2, worker: ALD23FVE83N6N
(0: guessing, 1: probably, 2: definitely)