Process for the modeling of dots for a screen
US7515303B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2006 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Sep 12, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/403
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A process for the modeling of dots in the generation of a threshold matrix for a screen for the production of a screen form for the printing of image data. The dots are described by model points built up from computed points with an assigned density value. For modeling of ink-jet printing, in the area of overlap of neighboring model points the density values of the computed points are added to form a sum density, the sum density is limited to a maximum possible blackening, and the percentages of the sum density which exceed the maximum possible blackening are distributed to the neighboring computed points. For the modeling of offset printing, in the area of overlap of neighboring model points the maximum of the density values of the computed points is determined as the resulting density and with a filter operation a dilatation of the model points is effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.