Tone correcting circuit and hue correcting circuit
US7215366B2 · kind B2 · utility
8Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2001 |
| Grant date | May 8, 2007 |
| Priority date | — |
| Expiry date | Sep 27, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/643
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There are provided hue detecting means for detecting a hue component for each pixel from a first color difference signal R−Y and a second color difference signal B−Y, and gain controlling means for controlling for each pixel a gain for arbitrarily selected one of or an arbitrary combination of a luminance signal, a first color difference signal R−Y, and a second color difference signal B−Y depending on the detected hue component for each pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.