Image processing method of backlight illumination control and device using the same
US8004489B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2007 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Jun 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing method of backlight illumination control is provided herein. First, an image including a plurality of pixels is received, wherein a first function is a relation between a gray-level value of one of the pixels and a displaying illumination of a backlight. The first function is compared with a characteristic function to obtain the specific function, wherein the characteristic function is a relation between the gray-level value and a predetermined displaying illumination of the backlight, and the specific function is a relation between the gray-level value and a remapped gray-level value. The specific function is utilized to remap the gray-level -value so as to adjust the displaying illumination. Therefore, the present invention enhances the displaying illumination for better visual quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.