Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.243326875503
Darker point darker score: 0.266475384376
darker: 2 (eq: False, dd: True), confidence: 2, worker: A3128LS551616K
darker: E (eq: True, dd: None), confidence: 1, worker: A223DDTP3FOZFU
darker: 2 (eq: False, dd: True), confidence: 0, worker: AIKBREX7SEPXE
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3GFISRU6V2MG5
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2H4ON6BUHMY1L (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2BELXEEQTFLXE (marked invalid)
(0: guessing, 1: probably, 2: definitely)