Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.950235980329
Darker point darker score: -0.258662814201
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2YYHNACJ8MFTU
darker: 2 (eq: False, dd: True), confidence: 0, worker: A1RU9BQLDZ1DSY (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: A258PTOZ3D2TQR
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3IPKVTS5K06LP
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3DY9JPLPQUN1O
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3QTG4DHHV2KD6
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
(0: guessing, 1: probably, 2: definitely)