Apparatus and method for encoding an image generated in part by graphical commands
US8442311B1 · kind B1 · utility
32Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2010 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Jan 10, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for encoding an image is disclosed. A decomposition circuit comprises a set of pixel filters used to identify picture pixels, background pixels and text pixels of the image. An image encoding circuit comprises a lossy discrete transform encoder for encoding the picture pixels, a constant color lossless encoder for encoding the background pixels, and a discrete color lossless encoder for encoding the text pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.