Judging whether trapping process is required or not
US7724393B2 · kind B2 · utility
6Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2004 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Apr 11, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/58
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In trapping process of a multicolor image, it is judged whether trapping process is required or not, and trapping process is performed only when required. Specifically, trapping process is executed when in a portion where a plurality of figures constituting an image overlap, the plate color value of a relatively lower figure is erased or overwritten. This enables to execute trapping process only when there is the danger that a gap occurs in a boundary portion where different two colors are adjacent each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.