Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.946817930704
Darker point darker score: 0.970582980788
darker: 2 (eq: False, dd: True), confidence: 0, worker: A1CEPAN1MLYHSO
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3163PFOUKXQKA
darker: 2 (eq: False, dd: True), confidence: 2, worker: AWL4VD8C90KJR (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3HIIRTGJUJZ1D
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A27H0BKXDPJ543
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3UIVQJXY62XU8
(0: guessing, 1: probably, 2: definitely)