Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.902468103772
Darker point darker score: 0.917360387154
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3760PCQD2MPIO
darker: 1 (eq: False, dd: True), confidence: 2, worker: A14MXJ8GNYDWX1
darker: 1 (eq: False, dd: True), confidence: 2, worker: A32M5FDKCPHMA
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1ZCYJOVB9YEOW (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3P8OM5PDCFZNE
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3NWQ0535HAXUD
(0: guessing, 1: probably, 2: definitely)