Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0144738044981
Darker point darker score: -0.882305486851
darker: 1 (eq: False, dd: True), confidence: 2, worker: AH5A4HC68V57W (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A12DV2RIAQPV5J
darker: E (eq: True, dd: None), confidence: 0, worker: A3JKYHQMKDV1Y9
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3R5MEKMYYM2JX
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1IJ5RKJ4MD2AM (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2KFG0H3IXPFM9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A27H0BKXDPJ543
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
(0: guessing, 1: probably, 2: definitely)