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

Claim 0:
1. A method comprising, by one or more processors:
receiving a greyscale image having a plurality of non-binary pixels, each non-binary pixel being associated with a grey level, and the greyscale image having a first number of grey levels;
determining an order of the non-binary pixels based on the grey level;
determining a second number of grey levels, wherein the second number of grey levels is greater than the first number;
determining an indication of a target number of non-binary pixels per grey level of the second number of grey levels;
taking the non-binary pixels in order, and based on the target number of non-binary pixels per grey level, allocating a new grey level to each non-binary pixel to provide the second number of grey levels; and
converting the new grey levels to thresholds of a threshold halftone screen.