Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.0387462655253
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1H10UJNXTJDX4
darker: 2 (eq: False, dd: True), confidence: 0, worker: A1GY0P2ZEJ1RK7
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3UZV2WVMQO4Q9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: AE6N096CSI5HT
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2Z6WC0PX1L4UG (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: AP29T5XPOQKG2 (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A3A45A5YUM61LK
(0: guessing, 1: probably, 2: definitely)