Enhancing contrast
US7545397B2 · kind B2 · utility
21Cited by
14References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Oct 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/74
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video processing for enhancing contrast includes detecting the ambient light levels on a display, performing local contrast enhancement processing to emphasize the luminance component based on the detected ambient light levels to provide a processed video signal, and presenting the processed video signal on the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.