Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.0546235768909
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A2S9J5W3VOD0M6
darker: E (eq: True, dd: None), confidence: 2, worker: A1DDY93NB8NESD
darker: E (eq: True, dd: None), confidence: 2, worker: A1KH9UPH0D74QJ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3LSDO3YPF1SFT
darker: E (eq: True, dd: None), confidence: 1, worker: A1XX6ZVVS2UTO7 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1QK90OHMNVT6N
darker: E (eq: True, dd: None), confidence: 2, worker: ANVXAMUEBGV8N
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1D2E3QRL7O43T
darker: E (eq: True, dd: None), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
(0: guessing, 1: probably, 2: definitely)