Color conversion method and profile generation method
US7755795B2 · kind B2 · utility
6Cited by
13References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2004 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Feb 12, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/608
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tincture adjustment value used to adjust a monochrome signal to a tincture desired by a user is set, and a tincture conversion table and chromaticity line table are generated based on that tincture adjustment value and the profile of an image output apparatus. Using the generated tables, a lightness signal L* corresponding to an input monochrome signal is converted into a distance signal l on a chromaticity line, and the distance signal l is converted into a chromaticity signal (a*, b*). The lightness signal L* and chromaticity signal (a*, b*) are converted into a color signal of the image output apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.