Reducing edge artifacts on a digital printer
US5903681A · kind A · utility
15Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1996 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Jul 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An arrangment is disclosed for reducing edge artifacts produced when printing a digital image on a digital printer, which printer is capable of producing multiple output levels, said digital image being represented as a rectangular array of pixels. In this arrangement, the following steps are accomplished by: computing difference signals between a center pixel value and pixel values of a set of one or more neighboring pixels; determining a pixel correction value responsive to the computed difference signals; and computing a new center pixel value by modifying the center pixel value using the pixel correction value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.