Image processing apparatus
US4723173A · kind A · utility
37Cited by
8References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 13, 1987 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Jul 13, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/40062
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Image processing apparatus comprises a first processor for binarizing an input image data with a first threshold level, a second processor for binarizing the input image data with a second threshold level, and a selector for discriminating an image tone of the input image data and selecting one of the first and second processors in accordance with a discrimination result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.