Half-tone image generator using white noise source
US5006938A · kind A · utility
5Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1989 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Dec 28, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4051
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A half-tone binarization generator that produces high-quality half-tone binarization images by converting multilevel brightness information into sets of black and white bitonal data by adding noise to the multilevel brightness information and using a thresholding technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.