Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.080437358733
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1OTE7CRHWUOGJ (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A2OF0GTKWKM2T5
darker: 1 (eq: False, dd: True), confidence: 0, worker: A3DY9JPLPQUN1O
darker: E (eq: True, dd: None), confidence: 2, worker: A1QIZATKBF64SO
darker: E (eq: True, dd: None), confidence: 2, worker: A1N274L13ZKKI5
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1NM7ZPZ3NH412
(0: guessing, 1: probably, 2: definitely)