Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -1.00059714794
Darker point darker score: 0.189962992427
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3FZPVGNOACL0D
darker: 1 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2631BM7J7H37K
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1FP3SH704X01V
darker: 2 (eq: False, dd: False), confidence: 2, worker: AR50UBGSH10FJ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: 2 (eq: False, dd: False), confidence: 1, worker: A26N0ZAW34UJUV
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
(0: guessing, 1: probably, 2: definitely)