Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.272366104613
Darker point darker score: 0.95047560194
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1OTE7CRHWUOGJ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1LAC2M11NC968
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3D2AKUFNQD73Y
darker: E (eq: True, dd: None), confidence: 2, worker: A350DTTUYQLHKJ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1IOJ2LGMGISYM
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NX9Q0EAOPYN3
(0: guessing, 1: probably, 2: definitely)