Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.0598004904212
Darker point darker score: 0.988350063129
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3FZ7C7M6VD21M (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: ATPCAF2RU1G4C (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A92IZM4P9SJ2S
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2HSGLM9NG1QN7
darker: 1 (eq: False, dd: True), confidence: 2, worker: AVJP26EXKPSE1
darker: 1 (eq: False, dd: True), confidence: 2, worker: A32XWNZW2DQ6UZ
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1IOJ2LGMGISYM
(0: guessing, 1: probably, 2: definitely)