Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.919829180803
Darker point darker score: 0.977663260436
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2Q27LZW3VNDIP
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2OF0GTKWKM2T5
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3GFISRU6V2MG5
darker: 2 (eq: False, dd: False), confidence: 2, worker: A29WHBX4Y40L08 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A27H0BKXDPJ543
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2FNC7KTCBF9IT
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1DDY93NB8NESD
(0: guessing, 1: probably, 2: definitely)