1. A printing device comprising: an input engine to acquire an input print image having input pixels at a first resolution to be printed by the printing device; a first engine to generate first and second output pixels based on a comparison of a first average gray value of a first set of the input pixels to a threshold, and a comparison of the threshold to a second average gray value of a second set of the input pixels; a second engine to selectively reassign a gray value of at least one of the first and second output pixels in response to a comparison of an average input gray value, of a third set of the input pixels, to an average output gray value of the output pixels; and an output engine to provide, to a print assembly having a second resolution lower than the first resolution, an output image, at the second resolution, generated based on the output pixels.