Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.925439873082
Darker point darker score: 0.980143423508
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1CE5G48ELWN0F
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3FVPDNQQLDFZH
darker: 2 (eq: False, dd: True), confidence: 2, worker: A369RBYR7J9MH7 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3TVDFJ22T1FFN (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3LNPBZXHKKAA7
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3IPKVTS5K06LP
darker: 2 (eq: False, dd: True), confidence: 1, worker: AU4FF0366TBAR (marked invalid)
(0: guessing, 1: probably, 2: definitely)