System and method for optimizing color compression using transparency control bits
US7062087B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2000 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/642
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system, method, and processor-readable medium provide for compressing color data involves a number of pixels defining a region of a display area. The pixel data for each of the pixels includes color data and control data. The control data of particular pixels, having color data not used to contribute to a color of an object in a display area region, is set to a transparent setting. The color data of the particular pixels is set to a selected color code for the entire region and subject to compression. In another embodiment, the particular pixels may include color data not used to contribute to a color of a first object or a second object in the display area region. The color data of particular pixels defining the first object is set to a first color code. The color data of particular pixels defining the second object is set to a second color code. The color data is switched between the first and second color codes at a selected pixel position. The color data of the particular pixels for the first and second display areas is compressed using the respective first and second color codes. Color compression may involve merging the second object of the second color with the first objec…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.