Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.152298549477
Darker point darker score: -0.901717851689
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2V9WRIAL9CJZT
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A22BAUES1TIZS6
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: A27H0BKXDPJ543
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3QTG4DHHV2KD6
(0: guessing, 1: probably, 2: definitely)