Four-way calibration of a digital camera using patch information acquired from a scene
US7414758B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2002 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Feb 27, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S358/906
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of improving a digital image captured by a digital camera comprising: providing a digital camera having a memory for storing known values of a color chart having a plurality of color patches of different colors and a digital image processor, using the digital camera to capture an image of the color chart to produce image values of the color patches of the color chart; operating the digital image processor to process at least some of the color patch imaged values and the stored known values of the color patches to produce a color correction matrix or profile; and storing the color correction matrix or profile to correct color images subsequently acquired by the digital camera.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.