Maintaining black edge quality in liquid ink printing
US6183062A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Dec 3, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0094
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for processing color image data to maintain edge quality in an image recorded on a receiving medium. The method includes receiving a target pixel comprising multiple separation pixels, each separation being associated with a separate color plane and having at least three states, a first state corresponding to depositing no ink, a second state corresponding to depositing one ink drop, and a third state corresponding to depositing more than one ink drop; determining if the target pixel is within a black border region near a black/non-printed interface; and if so, setting the separation pixel associated with a black color plane to a selected black pixel state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.