Methods and apparatus for color grading with gamut match preview
US8159500B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2008 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Jan 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for color grading an image within RGB color space including color values includes receiving a source image having first pixels, wherein second pixels from the first pixels are associated with colors within a first gamut but not a second gamut, receiving a color grading signal, determining a graded image by automatically modifying the colors associated with second pixels to become modified colors in response to the color grading signal, wherein the modified colors are within the second gamut, and wherein at least one color component value of the colors of the second pixels is similar to at least one color component value of the modified colors of the second pixels, wherein ordinality of colors in the one color component of the second pixels in the source image are preserved in the modified colors in the graded image, and storing the color grading signal in a memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.