Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.322031873909
Darker point darker score: 0.2249641107
darker: 1 (eq: False, dd: True), confidence: 2, worker: A8DFFGPH3G3V5
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2TE84RMBCJ1B1 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1N4JP7BSPNF95
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3JJAFR9BRLG0
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3A45A5YUM61LK
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
(0: guessing, 1: probably, 2: definitely)