1. An article of manufacture comprising a non-transitory machine-readable medium including data that, when accessed by a machine, cause the machine to perform operations comprising: generating a set of points via energy minimization to implement halftone seed pattern by performing an optimization function using a Riesz energy minimization algorithm, including: selecting a first particle location; selecting a second particle location; selecting a third particle location; calculating an energy minimization value for the first and second particle locations; and calculating an energy minimization value for the first and third particle locations.