Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.0547955410797
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1GM94HPPS4SS0
darker: E (eq: True, dd: None), confidence: 2, worker: A2TEWO3WJ5YKGG (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A341LHR7178BUY
darker: E (eq: True, dd: None), confidence: 1, worker: AYLD14EI9Q925
darker: E (eq: True, dd: None), confidence: 2, worker: A2A42CU48PN8CX
darker: E (eq: True, dd: None), confidence: 2, worker: A3A45A5YUM61LK
(0: guessing, 1: probably, 2: definitely)