Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.923280015091
Darker point darker score: 0.903668671161
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3CB0SM114NJVL
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1KF93C9NTOP42
darker: 2 (eq: False, dd: True), confidence: 2, worker: AO2JIXLS5MIC5 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AWL4VD8C90KJR (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3F813T7DKLBKP
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1ZH2G3ICIOPT2 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: A1KF93C9NTOP42
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3VQLIGEFIPKAP
(0: guessing, 1: probably, 2: definitely)