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US 12,581,023 B2Granted
Greyscale images
AssigneeHewlett-Packard Development Company, L.P.
InventorGideon Amir
Life of this patent
Estimating the term…
Abstract
In an example, a method includes, by one or more processors, acquiring a dot pattern having a distribution of dots. A greyscale image comprising a plurality of pixels each associated with a greyscale value may be derived from the dot pattern. Deriving the greyscale image may comprise assigning a greyscale value to each pixel, wherein the greyscale value is based on the distance associated with that pixel.
Claims20
A method comprising, by one or more processors:
- acquiring a non-halftone dot pattern having a distribution of non-halftone dots, wherein each of the non-halftone dots has a greyscale value in a range of greyscale values that includes more than greyscale values for black and white;
- and
- deriving, from the non-halftone dot pattern, a greyscale image comprising a plurality of pixels each associated with a greyscale value, wherein deriving the greyscale image comprises:
- assigning a greyscale value to each pixel, wherein the greyscale value is based on a distance associated with that pixel to each of the non-halftone dots.
1 more element
Processing circuitry comprising:
- a pattern module, to determine a non-halftone dot pattern, wherein each dot in the non-halftone dot pattern has a greyscale value in a range of greyscale values that includes more than greyscale values for black and white;
- and
- a greyscale module to determine a greyscale image of the non-halftone dot pattern, the greyscale image comprising a plurality of pixels each associated with a greyscale value, wherein the greyscale module is to assign a greyscale value to the pixel based on a distance associated with that pixel to each dot of the non-halftone dot pattern.
Non-transitory machine readable medium storing instructions which, when executed, cause a processor to:
- derive a greyscale image from an image comprising non-halftone distributed points by assigning a greyscale level to each pixel which is proportional to a distance associated with that pixel to each of the non-halftone distributed points, wherein each of the non-halftone distributed points has a greyscale value in a range of greyscale values that includes more than greyscale values for black and white.
Dependencies are inferred from the claim text.