Image processing apparatus
US4821334A · kind A · utility
31Cited by
5References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1985 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus has an image reading unit, a two dimensional smoothing circuit, a dither processing circuit, a binarizing circuit, a discriminator, a switch and a printer. A moire suppressed binary signal from the dither processing circuit is supplied to the printer via the switch when the discriminator discriminates a pixel of interest as a dot region. However, when the discriminator discriminates the pixel of interest as a line image region, a binary signal from the binarizing circuit is supplied to the printer via the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.