Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.314242169424
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3799NWTIYKCEV
darker: E (eq: True, dd: None), confidence: 0, worker: A2OF0GTKWKM2T5
darker: E (eq: True, dd: None), confidence: 2, worker: A1FUQIDCR4U4QQ
darker: 2 (eq: False, dd: True), confidence: 0, worker: A2KGL2FXIG2IQM (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AUJPYSYU7YL5
darker: E (eq: True, dd: None), confidence: 2, worker: A22BAUES1TIZS6
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3NWQ0535HAXUD
(0: guessing, 1: probably, 2: definitely)