Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.278604382193
Darker point darker score: 0.19421332715
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3R5MEKMYYM2JX
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2AAWTFFL0ZXEK (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3QLMSLL4AYTDT
darker: 2 (eq: False, dd: True), confidence: 2, worker: AW0K78T4I2T72
darker: 2 (eq: False, dd: True), confidence: 0, worker: A8DFFGPH3G3V5
darker: E (eq: True, dd: None), confidence: 2, worker: AWRMHUCV3KAW9
(0: guessing, 1: probably, 2: definitely)