Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.208520911781
Darker point darker score: 0.937844654328
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1WP5F7NLRWLKW
darker: 1 (eq: False, dd: True), confidence: 2, worker: A21AVVEQUEX7DA (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: AWO91BEOHNOJB
darker: 1 (eq: False, dd: True), confidence: 2, worker: AE3ML0W24YFNL
darker: 1 (eq: False, dd: True), confidence: 2, worker: A369RBYR7J9MH7 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A106BTOUPN1KRV
darker: E (eq: True, dd: None), confidence: 0, worker: A2VVSQ1PSXKGVE
(0: guessing, 1: probably, 2: definitely)