Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.268752086067
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1TQYQG3VFJTWW
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1H10UJNXTJDX4
darker: E (eq: True, dd: None), confidence: 2, worker: A8M21O74D3SFU
darker: E (eq: True, dd: None), confidence: 2, worker: A1DJDT4B5B19Q2
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3RLTUXIM8TU3K (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AFO6OUDRVZ317
(0: guessing, 1: probably, 2: definitely)