Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.472082578543
Darker point darker score: 0.317334017044
darker: E (eq: True, dd: None), confidence: 2, worker: A26IWVYPL4KZMO
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1LAC2M11NC968
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1E4M8ET704NBF
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1Y5DMCQYLVL74
darker: 2 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A390HYGLCX40HE
(0: guessing, 1: probably, 2: definitely)