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

Claim 7:
8. A method according to claim 1, comprising determining the greyscale image, wherein determining the greyscale image comprises:
determining a dot pattern having a distribution of dots;
deriving, from the dot pattern, a greyscale image comprising a plurality of non-binary pixels each associated with a greyscale value,
wherein deriving the greyscale image comprises:
for each non-binary pixel, determining the closest dot to the non-binary pixel and associating a distance of the closest dot from the non-binary pixel with that non-binary pixel; and
assigning a greyscale value to each non-binary pixel, wherein the greyscale value is based on the distance associated with that non-binary pixel and provides the grey level of the first number of grey levels.