Image processing apparatus with binarization-error dispersal
US4876610A · kind A · utility
55Cited by
8References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1987 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/10
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus for digitizing an analog image by dispersing the digitizing error to the surrounding areas. The characteristics or edge of the analog image are identified, and the error dispersing area is varied according to the result of identification, thus enabling reproduction of the image with high quality regardless of the nature of the original image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.