HPS2

This page applies to Harlequin v13.1r0 and later; both Harlequin Core and Harlequin MultiRIP.

HPS2 is an improved version of HPS which as well as producing moiré-free output as above, also applies a second-order stochastic technique to placement of dots. HPS would have randomly chosen which dot to augment with an additional pixel as the dots grow, but with HPS2 this is more controlled, leading to a dispersion of the choice of which dot to augment next. This gives smoother screens especially in very light highlights.

Use of HPS2 is controlled with the HPS2 system parameter.