Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.881516853452
Darker point darker score: 0.922475047766
darker: 2 (eq: False, dd: True), confidence: 2, worker: A4H1NYJVE7C53
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1OTE7CRHWUOGJ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3VQLIGEFIPKAP
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2CXAWVGQ6QQ2V
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1XVZCQ983ETMR
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NJB5LJJPC7AS
(0: guessing, 1: probably, 2: definitely)