Macropixel processing system, method and article
US10178359B2 · kind B2 · utility
1Cited by
3References
24Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 1, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Aug 31, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/447
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Tone mapping is performed by digital image processing circuitry on a macro-pixel basis. A luminance value of a macro-pixel of a digital image in a color space is determined. The macro-pixel includes a plurality of individual pixels. Respective tone-mapping gain values of each pixel of the macro-pixel are determined based on the determined luminance value of the macro-pixel. The determined tone-mapping gains are applied to the respective pixels of the macro-pixel. The color space may be a CFA color space, such as a Bayer color space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.