Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.537111581673
Darker point darker score: 0.311331164955
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NJB5LJJPC7AS
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1AKY7UPWR53YH
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1L3348HFKSWBJ (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: AGO9QN7UEDUYL
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3VO5CW9ZY22MZ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2K9VAUQ9I7CLT
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1DDY93NB8NESD
darker: 2 (eq: False, dd: True), confidence: 2, worker: AKG5TLUQ2WWED
darker: E (eq: True, dd: None), confidence: 2, worker: A7S0IDTDA59QN
(0: guessing, 1: probably, 2: definitely)