Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.909643125683
Darker point darker score: -1.07469515155
darker: 1 (eq: False, dd: True), confidence: 1, worker: A11GWWAXRJQ6Y2 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A390HYGLCX40HE
darker: 2 (eq: False, dd: False), confidence: 2, worker: AL4ULHASETN9O
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2ZMZDOTHBMUCK
darker: 2 (eq: False, dd: False), confidence: 2, worker: ACXUUWF75RR6C
darker: 2 (eq: False, dd: False), confidence: 0, worker: A2Q27LZW3VNDIP
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1DDY93NB8NESD
darker: 1 (eq: False, dd: True), confidence: 2, worker: A6KUVG49ZZ40M (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1JHVZIC3FH9LG
(0: guessing, 1: probably, 2: definitely)