Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.201566849891
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1JF9ZNXWK5QZU (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3FVPDNQQLDFZH
darker: E (eq: True, dd: None), confidence: 1, worker: A1EY3KWGUA9A1N
darker: E (eq: True, dd: None), confidence: 2, worker: A2DNSD743W4OC2
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3VETGL4OCTWD5
darker: E (eq: True, dd: None), confidence: 2, worker: A1JHVZIC3FH9LG
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2C5N3IQEP0KWA (marked invalid)
(0: guessing, 1: probably, 2: definitely)