Color conversion device and color conversion method
US6434268B1 · kind B1 · utility
33Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1999 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Apr 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
By changing coefficients of second-order and first-order calculation terms relating to respective hues, and first-order calculation terms in the form of comparison-result data relating to respective inter-hue areas, only the target hue or inter-hue area among the six hues of red, blue, green, yellow, cyan, and magenta, and the six inter-hue areas can be varied, without affecting other hues and inter-hue areas. Thus, the six hues and six inter-hue areas can be corrected independently, and the large-capacity memory is not required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.