Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.987922386258
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2I0M1XXACA4WE (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A9Y1HKUEOOEPM
darker: E (eq: True, dd: None), confidence: 2, worker: A1NZVXB0S8DR04
darker: E (eq: True, dd: None), confidence: 2, worker: A2EKPA2DR5VSA8
darker: E (eq: True, dd: None), confidence: 2, worker: A6KUVG49ZZ40M (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A3799NWTIYKCEV
darker: E (eq: True, dd: None), confidence: 2, worker: A106ZSJP3CLBE4
darker: E (eq: True, dd: None), confidence: 2, worker: A3UKUFHOITA6JF
darker: E (eq: True, dd: None), confidence: 2, worker: A3UKUFHOITA6JF
darker: E (eq: True, dd: None), confidence: 2, worker: A1GY0P2ZEJ1RK7
(0: guessing, 1: probably, 2: definitely)