Patent ID: 11956402
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 11:
12. Processing circuitry according to claim 11, wherein the image has non-binary sub-pixel resolution, wherein each non-binary sub-pixel is associated with a grey level, and the grey level of a non-binary pixel is an average grey level of the non-binary sub-pixels of that non-binary pixel;
wherein the greyscale module is to:
determine a target number of non-binary sub-pixels per grey level based on the number of non-binary sub-pixels and the target number of grey levels, and
allocate a grey level to each non-binary sub-pixel to provide, on average, the target number of non-binary sub-pixels per grey level; and
the conversion module is to convert the grey levels of non-binary sub-pixels to thresholds of the halftone screen.