Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.0355545516923
Darker point darker score: 0.896733720422
darker: 1 (eq: False, dd: True), confidence: 2, worker: AMV1QZDL5K6PG
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3O8YXPG1HGUH0
darker: E (eq: True, dd: None), confidence: 1, worker: A2LT5VXO2LS0UL
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3HIIRTGJUJZ1D
darker: E (eq: True, dd: None), confidence: 2, worker: AFO6OUDRVZ317
darker: 1 (eq: False, dd: True), confidence: 2, worker: A10VW2SKG32R5V (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2Z6WC0PX1L4UG (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A26Y4BFHJE7MN4 (marked invalid)
(0: guessing, 1: probably, 2: definitely)