Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.910551817339
Darker point darker score: 0.201897796835
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1NO4LG6KGOGFD
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1GVN53BJRWKD2
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3O8YXPG1HGUH0
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3KUGXG2Y6X7BD
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2TTWBQFLFUCZ3
darker: 2 (eq: False, dd: False), confidence: 0, worker: A1JHVZIC3FH9LG
(0: guessing, 1: probably, 2: definitely)