Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0221984963026
Darker point darker score: 1.04440457734
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1JF9ZNXWK5QZU (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AAOTQL1SCAC03
darker: 2 (eq: False, dd: True), confidence: 2, worker: AGQOUDGB4N87B
darker: 2 (eq: False, dd: True), confidence: 2, worker: AWL4VD8C90KJR (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1IX44UFXFW0ZY
darker: 2 (eq: False, dd: True), confidence: 2, worker: AZIODT1KEZZ3N
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A92IZM4P9SJ2S
(0: guessing, 1: probably, 2: definitely)