Image processing apparatus, image display apparatus, and image display method
US8090198B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2006 |
| Grant date | Jan 3, 2012 |
| Priority date | — |
| Expiry date | Feb 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A maximum and minimum color information detector detects a maximum color-signal gradation level or a value equivalent to the maximum gradation level and a minimum color-signal gradation level or a value equivalent to the minimum gradation level as color information for an image signal input to the image processing apparatus, a correction parameter generator sets correction parameters according to the color information about the input image signal, and a gradation corrector corrects the gradation scale of each color component of the input image signal according to the correction parameters. Contrast can thereby be improved without excessive color collapse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.