Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.0858039562408
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 0, worker: A1AS714Z27IV3X (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2DCLU4B46AB1U
darker: E (eq: True, dd: None), confidence: 1, worker: AWRMHUCV3KAW9
darker: 1 (eq: False, dd: True), confidence: 1, worker: AE6N096CSI5HT
darker: E (eq: True, dd: None), confidence: 0, worker: A2DTELFC4X0QJQ
darker: 1 (eq: False, dd: True), confidence: 2, worker: A79CHO3NW2IPO
(0: guessing, 1: probably, 2: definitely)