Back to results
US 2022/0215213 A1Published application
Digital halftoning with spiral dots
AssigneeAgfa NV
InventorRudolf Bartels
Life of this patent
Estimating the term…
Abstract
A halftone raster image, suitable for rendering a continuous-tone image, which comprises a plurality of regularly tiled spiral dots. Said spiral dots comprise (i) image pixels arranged as a first arc (200) or as a plurality of arcs which together represent a first spiral (100), and (ii) non-image pixels arranged as a second arc (201) or as a plurality of arcs which together represent a second spiral (101), wherein neighbour halftone dots from said plurality of regularly tiled halftone dots represent a double spiral or triple spiral.
Claims16
-15. (canceled)
A halftone raster image for rendering a continuous-tone image,
- wherein said halftone raster image comprises a plurality of regularly tiled halftone dots wherein a distance between feed points (1003, 2003) between each neighboring halftone dots is from 50 μm to 400 μm,
- wherein each of said halftone dots comprises:
- (i) image pixels arranged as a first arc (200) or as a plurality of arcs which together represent a first spiral (100) and
- (ii) non-image pixels arranged as a second arc (201) or as a plurality of arcs which together represent a second spiral (101), and
- wherein the outer ends of the first spirals of neighbor halftone dots of said plurality of regularly tiled halftone dots are connected to represent a double spiral or triple spiral.
2 more elements
Dependencies are inferred from the claim text.