Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.0310553007815
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1DY4DM16TBFPL
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1Y5DMCQYLVL74
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3TVDFJ22T1FFN (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2SNX0RFIPIO60
darker: E (eq: True, dd: None), confidence: 2, worker: A3NWQ0535HAXUD
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
darker: E (eq: True, dd: None), confidence: 0, worker: A35Y9YHW91OY2U (marked invalid)
(0: guessing, 1: probably, 2: definitely)