Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.911262977475
Darker point darker score: -0.100031088562
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3IPKVTS5K06LP
darker: 2 (eq: False, dd: True), confidence: 1, worker: AO2JIXLS5MIC5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1GVN53BJRWKD2
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3NBD6P0INJB4G
darker: 1 (eq: False, dd: False), confidence: 2, worker: A26QZVXO4ZS0ED
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3A45A5YUM61LK
darker: 2 (eq: False, dd: True), confidence: 2, worker: AP29T5XPOQKG2 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: AU4FF0366TBAR (marked invalid)
(0: guessing, 1: probably, 2: definitely)