System and method for color space conversion
US5818613A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1995 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Dec 4, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for converting a color represented in a first color space to the color represented in a second color space uses a constant hue algorithm. The constant hue algorithm is used to compensate invalid colors in the second color space obtained as a result of the conversion. The constant hue algorithm determines a compensation factor that, in effect, blends the invalid color with pure grey until the invalid color becomes a valid color in the second color space. The compensation factor is optionally stored with the valid color in the second color space so that the original color in the first color space can be subsequently recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.