Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.103204190474
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A1136V0RZUR5TO
darker: E (eq: True, dd: None), confidence: 1, worker: A2SNX0RFIPIO60
darker: 2 (eq: False, dd: True), confidence: 2, worker: AH7WFV2TQYEW0 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1OA3O78YDXGZO
darker: 2 (eq: False, dd: True), confidence: 2, worker: A12ABO48ZV09LR (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AYLD14EI9Q925
darker: E (eq: True, dd: None), confidence: 2, worker: AW0K78T4I2T72
(0: guessing, 1: probably, 2: definitely)