Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.0046667058054
Darker point darker score: 0.273966019871
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3BOFWD3AVRMLC
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3VO5CW9ZY22MZ
darker: E (eq: True, dd: None), confidence: 1, worker: A2XWHAVGMXTVMJ
darker: 1 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3IPKVTS5K06LP
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3RXVRZ0M163C0
(0: guessing, 1: probably, 2: definitely)