Scanning system having brightness compensation apparatus and method thereof
US8300283B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Mar 28, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4076
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanning system having a brightness compensation apparatus and method thereof are described. The brightness compensation apparatus includes a statistics window control unit, a brightness statistics logic unit, and a comparing logic unit. The statistics window control unit sets a statistics window setting area. The brightness statistics logic unit generates the current brightness statistics data corresponding to the current page. The comparing logic unit compares the current brightness statistics data with brightness target value to determine whether the brightness compensation apparatus compensates the brightness of next page based on the comparison result and/or image gain of the current page for adjusting the brightness of the scanning system according to the compared result between the brightness statistic data and the brightness target value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.