Method for improved contrast mapping of digital images
US6760484B1 · kind B1 · utility
9Cited by
12References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 26, 2000 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jan 26, 2020 |
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.