Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.892093084831
Darker point darker score: 1.10981706501
darker: 2 (eq: False, dd: True), confidence: 1, worker: AE6N096CSI5HT
darker: 2 (eq: False, dd: True), confidence: 2, worker: A14S7A62C87LTI
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2TP6GDF71HM4M
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A2C5CT4Y35F75B
darker: 2 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: A2Q27LZW3VNDIP
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3GFISRU6V2MG5
(0: guessing, 1: probably, 2: definitely)