Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.111932763956
Darker point darker score: 0.327421696322
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3R5MEKMYYM2JX
darker: 1 (eq: False, dd: False), confidence: 0, worker: A18YH2N9M2P95T (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A2K9VAUQ9I7CLT
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1N274L13ZKKI5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1Y5DMCQYLVL74
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3FVPDNQQLDFZH
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3PHP9TTAVN4Y4
darker: E (eq: True, dd: None), confidence: 2, worker: A3R5MEKMYYM2JX
darker: 1 (eq: False, dd: False), confidence: 0, worker: A1Z3RPPYNUUT0Z
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1Z3RPPYNUUT0Z
(0: guessing, 1: probably, 2: definitely)