Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -1.02679394428
Darker point darker score: 0.0757949686448
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1O61JHO0LUZRI (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: ABWVRVG5B5OMX (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3NWQ0535HAXUD
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3DKW5X4Y1Z6UD
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2Q1A5H715C3EK
darker: 2 (eq: False, dd: False), confidence: 2, worker: AEJO933AJ3ZZH
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2CXAWVGQ6QQ2V
(0: guessing, 1: probably, 2: definitely)