Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -1.02534876493
Darker point darker score: -0.181677964535
darker: 1 (eq: False, dd: False), confidence: 0, worker: A3CB0SM114NJVL
darker: 2 (eq: False, dd: True), confidence: 2, worker: AUD3A4YDWWZCY (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: A1MQPBGSL800TL
darker: 1 (eq: False, dd: False), confidence: 0, worker: A2YUKCBFNE5RGL
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2CXAWVGQ6QQ2V
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1WRANKL1HRGYW
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2KFG0H3IXPFM9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AU4FF0366TBAR (marked invalid)
(0: guessing, 1: probably, 2: definitely)