Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.923376735095
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A1A8QC2RMP3LBO
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1ZGOZQF2VZ0X9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: E (eq: True, dd: None), confidence: 2, worker: A237FGJCPV99GJ
darker: E (eq: True, dd: None), confidence: 2, worker: A3R5MEKMYYM2JX
darker: E (eq: True, dd: None), confidence: 2, worker: AYJ67827HW8LL
darker: E (eq: True, dd: None), confidence: 2, worker: A1GVN53BJRWKD2
darker: E (eq: True, dd: None), confidence: 2, worker: A2FNC7KTCBF9IT
darker: E (eq: True, dd: None), confidence: 2, worker: A2K9VAUQ9I7CLT
darker: E (eq: True, dd: None), confidence: 2, worker: A3RZMD0GPKZBJ5
(0: guessing, 1: probably, 2: definitely)