Adjustment for output image of image data
US7301566B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2003 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Oct 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/72
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In case where photo information PI (Exif IFD) is included in image data GF, a CPU calculates a modified contrast correction amount tCurve_cont and a modified brightness value correction amount tCurve_Y, in consideration of an exposure correction amount (a light exposure) EV. The CPU applies the obtained modified contrast correction amount tCurve_cont and the modified brightness value correction amount tCurve_Y to a tone curve, and executes an adjustment of image quality including contrast and brightness value. In other words, the CPU modifies characteristics of the tone curve by using the modified contrast correction amount tCurve_cont and the modified brightness value correction amount tCurve_Y, and adjusts the image quality of the image data by applying the modified tone curve to the image data GD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.