Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.926403327243
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: AE6N096CSI5HT
darker: E (eq: True, dd: None), confidence: 1, worker: A3GFISRU6V2MG5
darker: E (eq: True, dd: None), confidence: 0, worker: AY4PUTE2I6K3C (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2Z6WC0PX1L4UG (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3RZMD0GPKZBJ5
darker: E (eq: True, dd: None), confidence: 2, worker: A3RZMD0GPKZBJ5
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2C5N3IQEP0KWA (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: AMDW925P9IY2O
(0: guessing, 1: probably, 2: definitely)