Improved color rendering method for intensity-variable printing based upon a dithering table
US5398297A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1992 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Jul 27, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40087
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of printing an image on a substrate based on an input of detailed image intensity information for each of discrete pixel areas of the substrate, includes or performs steps of processing the detailed image intensity information into less detailed image intensity information; dithering the less detailed image intensity information to approximate the intensity resolution of the detailed image intensity information; and printing the dithered, less detailed, image intensity information onto the substrate. The system will use less memory space than a comparable system which prints directly from the detailed image intensity information, will minimize patterning effects, and will correct for artifacts which might otherwise be printed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.