Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.341227880459
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 0, worker: AH8FQGOADPCST (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3UIVQJXY62XU8
darker: 1 (eq: False, dd: True), confidence: 2, worker: AL40D2AAH2VB2
darker: E (eq: True, dd: None), confidence: 2, worker: AGDDGSV1IQ0Z4
darker: E (eq: True, dd: None), confidence: 2, worker: A3QW1C79IH4GOG
darker: 2 (eq: False, dd: False), confidence: 2, worker: A6KUVG49ZZ40M (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: ADPVKKFJ886DJ
darker: E (eq: True, dd: None), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
(0: guessing, 1: probably, 2: definitely)