Invention Grant
US08717454B2 Image pickup apparatus and image pickup method for adjusting white balance to account for flash and external light sources
有权
用于调整白平衡以考虑闪光灯和外部光源的摄像装置和图像拾取方法
- Patent Title: Image pickup apparatus and image pickup method for adjusting white balance to account for flash and external light sources
- Patent Title (中): 用于调整白平衡以考虑闪光灯和外部光源的摄像装置和图像拾取方法
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Application No.: US12977900Application Date: 2010-12-23
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Publication No.: US08717454B2Publication Date: 2014-05-06
- Inventor: Takahiko Yoshida
- Applicant: Takahiko Yoshida
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Drinker Biddle & Reath LLP
- Priority: JP2009-293474 20091224; KR10-2010-0127097 20101213
- Main IPC: H04N5/228
- IPC: H04N5/228 ; H04N9/73 ; H04N5/225
Abstract:
An image pickup apparatus includes an image pickup unit that acquires a first image without a flash and a second image with the flash; a down-sampling unit that generates a third image by down-sampling the second image; a brightness difference calculator that calculates a brightness difference between the first image and the third image; a flash reflection intensity calculator that calculates a first flash reflection intensity from the brightness difference; and a white balance gain calculator that calculates a white balance gain based on the first flash reflection intensity. An image pickup method includes acquiring a first image without a flash and a second image with the flash, generating a third image by down-sampling the second image, calculating a brightness difference between the first image and the third image, calculating a first flash reflection intensity from the brightness difference, and calculating a white balance gain.
Public/Granted literature
- US20110157413A1 Image Pickup Apparatus and Image Pickup Method Public/Granted day:2011-06-30
Information query
