Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.117894108118
Darker point darker score: 0.940950003107
darker: E (eq: True, dd: None), confidence: 1, worker: AE6N096CSI5HT
darker: 2 (eq: False, dd: True), confidence: 2, worker: A18WZ06GBK6FGZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2GIH07XETLUD7
darker: 2 (eq: False, dd: True), confidence: 0, worker: A32XWNZW2DQ6UZ
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2C5N3IQEP0KWA (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A32XWNZW2DQ6UZ
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2CXAWVGQ6QQ2V
(0: guessing, 1: probably, 2: definitely)