Color correction of images
US7082218B2 · kind B2 · utility
26Cited by
14References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2002 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Dec 5, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/134
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A raw image consists of a plurality of pixels in a plurality of color planes giving a color image. The raw image is split into at least a low frequency image and a high frequency image. At least the low frequency image is color corrected to produce a color corrected low frequency image. The color corrected low frequency image is combined with at least the high frequency image to give a final image which is of comparable resolution to the raw image but is color corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.