Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.47259626416
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A25R3HUN514JKX (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1BDJFRSELMRDT
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3N6C8962TXPVH
darker: E (eq: True, dd: None), confidence: 2, worker: A2HCXQ6WTTL79C
darker: E (eq: True, dd: None), confidence: 1, worker: A3LHITZX5D9J9A
darker: E (eq: True, dd: None), confidence: 2, worker: A3UC4JITM1QD1M
(0: guessing, 1: probably, 2: definitely)