Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 1.04936733346
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 1, worker: A2G053HOWRCZZ6 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A20HBLXCTOG7MI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2K4WWF11Q0R9W
darker: 2 (eq: False, dd: True), confidence: 2, worker: A38TQC40K87G6I (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A167L9XCC3KHPF
darker: E (eq: True, dd: None), confidence: 2, worker: A27H0BKXDPJ543
darker: E (eq: True, dd: None), confidence: 2, worker: A1D2E3QRL7O43T
darker: E (eq: True, dd: None), confidence: 1, worker: AYLD14EI9Q925
(0: guessing, 1: probably, 2: definitely)