Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.253432569922
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: False), confidence: 2, worker: A7S0IDTDA59QN
darker: E (eq: True, dd: None), confidence: 2, worker: A2Q1A5H715C3EK
darker: E (eq: True, dd: None), confidence: 1, worker: AE6N096CSI5HT
darker: E (eq: True, dd: None), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 0, worker: A2H4ON6BUHMY1L (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A3A45A5YUM61LK
darker: E (eq: True, dd: None), confidence: 2, worker: AKLZPOBB3YA33
(0: guessing, 1: probably, 2: definitely)