Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.948501740165
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2EY9GDVA7L8YM (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: ASOOONBGQ48YI
darker: E (eq: True, dd: None), confidence: 2, worker: A3FVPDNQQLDFZH
darker: E (eq: True, dd: None), confidence: 2, worker: AIKBREX7SEPXE
darker: E (eq: True, dd: None), confidence: 1, worker: A3UZV2WVMQO4Q9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1CEPAN1MLYHSO
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1BTE6I49HJW2V (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3RZMD0GPKZBJ5
darker: 2 (eq: False, dd: True), confidence: 2, worker: AJSZEUBV1O00K (marked invalid)
(0: guessing, 1: probably, 2: definitely)