Color correction apparatus, color correction method, and recording medium having color correction control program recorded
US6947078B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2000 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Dec 5, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/62
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a color correction apparatus for correcting the color image data, a color adjustment amount for canceling a difference between the optimum value (Rt, Gt, Bt) predetermined for the fixed-color pixel and the result of the summing-up is obtained. Therefore, the color adjustment amount is corrected on the basis of the fixed elemental color elements of the pixel, and the color image data is color-corrected on the basis of the corrected color adjustment amount. Since a computing equation for adjustment operation is simple, the processing time can be shortened. Further, since the color adjustment amount is corrected on the basis of the fixed memory color element of each pixel, it is possible to suppress color jumping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.