Efficient companding algorithm suitable for color imaging
US6351555B1 · kind B1 · utility
21Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2000 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Jan 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10024
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A companding method is disclosed where a set of factors related to the color characteristics of captured images are determined. Using these characteristics, a companding scheme is developed such that each pixel is lowered in resolution, but in such a manner that the image retains important features. These factors related to color characteristics are determined in part by analyzing histograms related to the image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.