Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.00734951816921
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3SEJPAKH95QLH
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2XU16B4I9XQG5 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 0, worker: A2Q27LZW3VNDIP
darker: E (eq: True, dd: None), confidence: 2, worker: A2FNC7KTCBF9IT
darker: 2 (eq: False, dd: False), confidence: 2, worker: A106BTOUPN1KRV
darker: E (eq: True, dd: None), confidence: 1, worker: A27H0BKXDPJ543
darker: E (eq: True, dd: None), confidence: 2, worker: A1Y5DMCQYLVL74
darker: 2 (eq: False, dd: False), confidence: 0, worker: A167L9XCC3KHPF
(0: guessing, 1: probably, 2: definitely)