Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.193079143734
Darker point darker score: 0.951134237092
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3P9BBIGUZ53BX (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1U1W6BX6937QB
darker: 2 (eq: False, dd: True), confidence: 2, worker: AKLZPOBB3YA33
darker: 2 (eq: False, dd: True), confidence: 0, worker: AU4FF0366TBAR (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: AW0K78T4I2T72
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2K4WWF11Q0R9W
darker: E (eq: True, dd: None), confidence: 2, worker: A1IOJ2LGMGISYM
(0: guessing, 1: probably, 2: definitely)