Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -1.04644973449
Darker point darker score: 0.995797006926
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1KF93C9NTOP42
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3B0AB2C9SIHN
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2EKPA2DR5VSA8
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1MQPBGSL800TL
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1NPKI9KKWOI2P
(0: guessing, 1: probably, 2: definitely)