Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.0434844821569
Darker point darker score: 0.15770706442
darker: 1 (eq: False, dd: True), confidence: 0, worker: AH8FQGOADPCST (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3DY9JPLPQUN1O
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3DHYTZ1GPN0T8
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3GTIIFSMHAKRZ
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3O8YXPG1HGUH0
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1NQZHW4RY6IDR
(0: guessing, 1: probably, 2: definitely)