Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.00522861758758
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A1LAC2M11NC968
darker: E (eq: True, dd: None), confidence: 0, worker: AH8FQGOADPCST (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3VLWJYR99R66D
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3Q2HC4T5MHY93
darker: E (eq: True, dd: None), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AGO9QN7UEDUYL
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3SOJXAUQE15S3
darker: 2 (eq: False, dd: True), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2FNC7KTCBF9IT
(0: guessing, 1: probably, 2: definitely)