Method for processing a backlight image and device thereof
US7982807B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2007 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | May 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/76
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for processing an image includes inputting an image, generating a first mean luminance value and a second mean luminance value according to a plurality of pixels within a first luminance interval and a second luminance interval of the image, generating a first luminance threshold according to the first mean luminance value, setting a compensation parameter, generating a first compensation luminance value according to the first mean luminance value and the compensation parameter, generating a second compensation luminance value according to the first luminance threshold, the first mean luminance value, the second mean luminance value, and the compensation parameter, and adjusting luminance values of pixels within the a smaller compensation luminance value and a greater compensation luminance value according to the smaller compensation value and a comparison between the first compensation luminance value and the second compensation luminance value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.