Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -1.02251453597
Darker point darker score: 0.0680311141812
darker: 1 (eq: False, dd: True), confidence: 0, worker: A1JHVZIC3FH9LG
darker: 1 (eq: False, dd: True), confidence: 1, worker: A14P86I4JB46ET
darker: 1 (eq: False, dd: True), confidence: 2, worker: ATWGPR2A3M7WU (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1MQPBGSL800TL
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2T2OXP4DAUXEY (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A92IZM4P9SJ2S
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2SNX0RFIPIO60
(0: guessing, 1: probably, 2: definitely)