Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.02018632284
Darker point darker score: 0.891790418428
darker: 2 (eq: False, dd: True), confidence: 1, worker: A15XHPD9NN0LU2
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1XVZCQ983ETMR
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1FUQIDCR4U4QQ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2ZRJMJTE6ID97
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1PRVVISZ1C6CQ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3NWQ0535HAXUD
(0: guessing, 1: probably, 2: definitely)