Invention Grant
US08421879B2 White balance adjustment device, image capture device, white balance adjustment method, storage medium, and integrated circuit
有权
白平衡调整装置，图像采集装置，白平衡调整方法，存储介质和集成电路
- Patent Title: White balance adjustment device, image capture device, white balance adjustment method, storage medium, and integrated circuit
- Patent Title (中): 白平衡调整装置，图像采集装置，白平衡调整方法，存储介质和集成电路
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Application No.: US13234236Application Date: 2011-09-16
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Publication No.: US08421879B2Publication Date: 2013-04-16
- Inventor: Takeshi Ito , Haruo Yamashita , Daisuke Sato
- Applicant: Takeshi Ito , Haruo Yamashita , Daisuke Sato
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2007-204539 20070806; JP2008-161560 20080620
- Main IPC: H04N9/73
- IPC: H04N9/73
Abstract:
A natural white balance is achieved in images that are captured while emitting a flash. The white balance of an image is adjusted using a WB adjustment portion and a mixture ratio calculation portion estimating a mixture ratio of an external light component and a flashed light component that are present in an image captured with emitting a flash, from the image obtained that is captured while emitting a flash and an image signal that is obtained without emitting a flash. Further, an external light WB coefficient determination portion determines an WB coefficient for the external light, a flashed light WB coefficient setting portion sets a WB coefficient for the flashed light, and a WB processing portion that continuously performs WB processing on the image captured while emitting a flash by using the mixture ratio as an interpolation ratio.
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