Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.102861759705
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1TKGFJSMVR2RP
darker: E (eq: True, dd: None), confidence: 0, worker: A3GFISRU6V2MG5
darker: E (eq: True, dd: None), confidence: 0, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3LI0O659I8GFX
darker: E (eq: True, dd: None), confidence: 2, worker: AWRMHUCV3KAW9
darker: E (eq: True, dd: None), confidence: 2, worker: A3RZMD0GPKZBJ5
darker: 2 (eq: False, dd: False), confidence: 2, worker: AJSZEUBV1O00K (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2A42CU48PN8CX
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3S6JT56CCUSE2 (marked invalid)
(0: guessing, 1: probably, 2: definitely)