Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0435669800249
Darker point darker score: 0.92241649254
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3HIIRTGJUJZ1D
darker: 2 (eq: False, dd: True), confidence: 0, worker: A14BFNH96MJQH
darker: E (eq: True, dd: None), confidence: 1, worker: A3Q2HC4T5MHY93
darker: E (eq: True, dd: None), confidence: 0, worker: A18YH2N9M2P95T (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: ACXUUWF75RR6C
darker: E (eq: True, dd: None), confidence: 2, worker: A3DHYTZ1GPN0T8
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1ABA3S1BGNCWW
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3A45A5YUM61LK
darker: E (eq: True, dd: None), confidence: 2, worker: A3UC4JITM1QD1M
darker: E (eq: True, dd: None), confidence: 2, worker: A15XHPD9NN0LU2
(0: guessing, 1: probably, 2: definitely)