Color balance in digital photography
US8976264B2 · kind B2 · utility
52Cited by
1References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2012 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Jan 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20221
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A technique for generating a digital photograph comprises blending two related images, each sampled according to a different illumination environment. The two related images are blended according to a blend surface function that includes a height discontinuity separating two different blend weight regions. Color consistency between the two related images is achieved by spatial color correction prior to blending. The technique enables a digital camera to generate a strobe image having an appearance of consistent color despite discordant strobe and ambient scene illumination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.