Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0928868591295
Darker point darker score: 0.950123592918
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3JJAFR9BRLG0
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2AAWTFFL0ZXEK (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3D2AKUFNQD73Y
darker: E (eq: True, dd: None), confidence: 2, worker: A1NJB5LJJPC7AS
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2LT5VXO2LS0UL
darker: 1 (eq: False, dd: False), confidence: 2, worker: ATWGPR2A3M7WU (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2A42CU48PN8CX
(0: guessing, 1: probably, 2: definitely)