Decompressing image-based data compressed using luminance
US7760936B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2006 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Nov 13, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Data that includes an encoded version of sets of color component values for a block of texels is accessed. The encoded version includes a first set of color component values selected from a pre-encoded version of the sets and a second set of color component values selected from the pre-encoded version of the sets. The first set and the second set correspond to endpoints of a range of colors. The encoded version further includes index values associated with the texels. The first set and the second set and an index value associated with a texel are used to decode a third set of color component values that describes a color for the texel. The index value indicates how to determine the third set using the first set and the second set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.