Method and apparatus for providing 32-bit YUV to RGB color conversion
US5920322A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 22, 1996 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | May 22, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of providing conversion from YUV signals to RGB signals includes the steps of determining a correspondence value between each of the Y, U, and V pixel values and the corresponding one of the R, G, and B pixel values. Three tables are generated; a Y table, a U table and a V table. During operation, each table may then be easily accessed by indexing the table with the respective Y, U or V input, to provide R,G,B data. The method may be used in a 64 bit embodiment using two registers or one register. Alternatively, the method may be used in a 32 bit embodiment. The conversion method can easily be augmented to provide color adjustment during conversion without any added complexity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.