Object-based raster trapping
US7359530B2 · kind B2 · utility
5Cited by
9References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | May 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/1826
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Trapping graphics during pre-press workflow involves intensive computation. In this invention, the trapping engine uses simple bounding boxes, colors, and temporal order information, to eliminate the possibility of trapping many pairs of objects without ever having to calculate their exact shapes. By considering the temporal order of the objects in a page, such a z-order display list, the trapping engine can quickly reject the possibility of trapping in areas where it is not necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.