Image processing apparatus and mobile terminal apparatus
US7671901B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2005 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Dec 31, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4131
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus has an input portion for receiving video signals, an illumination sensor for detecting illumination of an environmental light, a corrector for correcting the video signals, and a controller for controlling the corrector to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals and with the detected illumination when any change occurs in the video signal. The apparatus further has a detector for detecting a change of the video signals in accordance with a mean value of luminance of the inputted video signals, a corrector for correcting the video signals, and a controller for controlling the correction portion to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals when the detector detects the change of the video signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.