Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.03196004531
Darker point darker score: 0.224425028285
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3A45A5YUM61LK
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1GVN53BJRWKD2
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2Q1A5H715C3EK
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2AAWTFFL0ZXEK (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3IPKVTS5K06LP
darker: 2 (eq: False, dd: True), confidence: 2, worker: A106BTOUPN1KRV
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
(0: guessing, 1: probably, 2: definitely)