Image processing apparatus and control method thereof for generating high dynamic range image data
US10313605B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 2017 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | May 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing apparatus includes a first composition unit which generates a first HDR image by applying a first gamma to each of a plurality of images different in exposure amount and composing the plurality of images after the application of the first gamma, a determination unit which determines whether one preset image among the plurality of images includes a light region satisfying a preset condition, a generation unit which generates, based on the light region, map data for discriminating the light region, a dark region, and an intermediate region, and a second composition unit which generates a second HDR image by applying a second gamma to one of the plurality of images, and composing, with reference to the map data, an image obtained by applying the second gamma and the first HDR image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.