Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.911957285633
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: False), confidence: 2, worker: A7DN8E3C7IWLI (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A3QW1C79IH4GOG
darker: E (eq: True, dd: None), confidence: 1, worker: ASOOONBGQ48YI
darker: E (eq: True, dd: None), confidence: 2, worker: AET2U31SXUAPM
darker: E (eq: True, dd: None), confidence: 2, worker: A167L9XCC3KHPF
darker: E (eq: True, dd: None), confidence: 1, worker: A2G053HOWRCZZ6 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A10VW2SKG32R5V (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3A45A5YUM61LK
(0: guessing, 1: probably, 2: definitely)