Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.981796111238
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1ZGOZQF2VZ0X9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1136V0RZUR5TO
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: E (eq: True, dd: None), confidence: 2, worker: A258PTOZ3D2TQR
darker: E (eq: True, dd: None), confidence: 2, worker: A2ZMZDOTHBMUCK
darker: E (eq: True, dd: None), confidence: 2, worker: A22BAUES1TIZS6
darker: E (eq: True, dd: None), confidence: 0, worker: A3799NWTIYKCEV
darker: E (eq: True, dd: None), confidence: 2, worker: A8DFFGPH3G3V5
(0: guessing, 1: probably, 2: definitely)