Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0117828427573
Darker point darker score: -0.896575925989
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3ICG6AUFB4AT
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
darker: 2 (eq: False, dd: False), confidence: 1, worker: A22BAUES1TIZS6
darker: 2 (eq: False, dd: False), confidence: 0, worker: ADPVKKFJ886DJ
darker: 1 (eq: False, dd: True), confidence: 1, worker: AKJ6IXN6XE7OQ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AGO9QN7UEDUYL
(0: guessing, 1: probably, 2: definitely)