Apparatus and method for controlling colors of color image
US7545533B2 · kind B2 · utility
12Cited by
1References
46Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 22, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Aug 3, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of and apparatus for converting a color space. The method includes: separating a color signal of a given pixel into a brightness component and a saturation component; obtaining a boundary value of the saturation component of a color gamut, to which the color signal belongs, in a first color space using the separated brightness component and saturation components; and converting the first color space into a second color space in which saturation components and hue components are independently controlled using the obtained boundary value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.