Image quality correcting system for use with an imaging apparatus
US5068718A · kind A · utility
24Cited by
7References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Mar 20, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image quality correction circuit for use with an imaging apparatus which converts a luminance signal so that an intermediate portion of the signal between preset minimum and maximum values is extended. The invention also relates to a device where color difference signals are corrected in accordance with the same nonlinear characteristic utilized in the correction of the luminance signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.