Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.241593820901
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 0, worker: AH8FQGOADPCST (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: True), confidence: 0, worker: AUJPYSYU7YL5
darker: 2 (eq: False, dd: False), confidence: 2, worker: AE6N096CSI5HT
darker: E (eq: True, dd: None), confidence: 2, worker: A167L9XCC3KHPF
darker: E (eq: True, dd: None), confidence: 2, worker: A1QIZATKBF64SO
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2H4ON6BUHMY1L (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AW0K78T4I2T72
darker: E (eq: True, dd: None), confidence: 2, worker: AGY2PTZLZFT2L
darker: E (eq: True, dd: None), confidence: 0, worker: ASJ2RFXCJT1T8
(0: guessing, 1: probably, 2: definitely)