Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.113187573946
Darker point darker score: 0.918499215376
darker: 2 (eq: False, dd: True), confidence: 2, worker: A10S23B6VB5G8M
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1JHVZIC3FH9LG
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1BTE6I49HJW2V (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A1NM7ZPZ3NH412
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)