Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.04486053839
Darker point darker score: 0.360188207141
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3PIU3R3IE6VDW
darker: 1 (eq: False, dd: False), confidence: 2, worker: AYDW5LJOF8GF2
darker: 2 (eq: False, dd: True), confidence: 1, worker: A266KTWY0HBD2F
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1OQNX48FT7AKK (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3HIIRTGJUJZ1D
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1MQPBGSL800TL
(0: guessing, 1: probably, 2: definitely)