Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.753304948729
Darker point darker score: 0.160869745389
darker: 2 (eq: False, dd: True), confidence: 0, worker: A2EKPA2DR5VSA8
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1IJ5RKJ4MD2AM (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3O8YXPG1HGUH0
darker: E (eq: True, dd: None), confidence: 2, worker: ABWVRVG5B5OMX (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3NBD6P0INJB4G
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UC4JITM1QD1M
darker: E (eq: True, dd: None), confidence: 0, worker: ASJ2RFXCJT1T8
(0: guessing, 1: probably, 2: definitely)