Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.230057283713
Darker point darker score: 1.10375960681
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2C5CT4Y35F75B
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1I4YHF7RG58DV
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2D6GU31XFG5LY
darker: 2 (eq: False, dd: True), confidence: 1, worker: AE6N096CSI5HT
darker: 1 (eq: False, dd: False), confidence: 0, worker: A1WVOW92WZG8HP (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3JJAFR9BRLG0
(0: guessing, 1: probably, 2: definitely)