Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.256387851515
Darker point darker score: 0.96664172834
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3RNCUQDU5AVEI
darker: E (eq: True, dd: None), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2BG6O1B5B3F78
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3DY9JPLPQUN1O
darker: E (eq: True, dd: None), confidence: 2, worker: A1TQ7UQSSQP7BD (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: AWO91BEOHNOJB
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2A42CU48PN8CX
(0: guessing, 1: probably, 2: definitely)