Method for improved contrast mapping of digital images
US7046858B2 · kind B2 · utility
5Cited by
12References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2004 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Nov 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T5/94
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of local contrast mapping that changes the dynamic range of an original image to more closely match the dynamic range of the medium used for the reproduction. The method compresses large contrast differences between different areas of an image while preserving small contrast differences between different areas of an image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.