Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -1.02661329853
Darker point darker score: -1.02910122372
darker: 1 (eq: False, dd: False), confidence: 2, worker: A14MXJ8GNYDWX1
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NQZHW4RY6IDR
darker: 1 (eq: False, dd: False), confidence: 2, worker: AO1T9KG7VR0P5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1IOJ2LGMGISYM
darker: 1 (eq: False, dd: False), confidence: 2, worker: A7S0IDTDA59QN
(0: guessing, 1: probably, 2: definitely)