Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.142698528323
Darker point darker score: -0.117949217778
darker: 1 (eq: False, dd: False), confidence: 2, worker: APMG8Q2KABUGV
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3RJ8NZQ8BRTZM (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A167L9XCC3KHPF
darker: 1 (eq: False, dd: False), confidence: 1, worker: AYDW5LJOF8GF2
darker: E (eq: True, dd: None), confidence: 2, worker: A27H0BKXDPJ543
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1D2E3QRL7O43T
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2BELXEEQTFLXE (marked invalid)
(0: guessing, 1: probably, 2: definitely)