Invention Grant
- Patent Title: Image capturing apparatus for adjusting an exposure value that is set lower than the correct exposure value
- Patent Title (中): 用于调整设定为低于正确曝光值的曝光值的图像拍摄装置
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Application No.: US12053654Application Date: 2008-03-24
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Publication No.: US07995135B2Publication Date: 2011-08-09
- Inventor: Tetsuji Uezono
- Applicant: Tetsuji Uezono
- Applicant Address: US NY Rochester
- Assignee: Eastman Kodak Company
- Current Assignee: Eastman Kodak Company
- Current Assignee Address: US NY Rochester
- Agent Peter P. Hernandez; Peyton C. Watkins
- Priority: JP2007-335469 20071227
- Main IPC: H04N9/73
- IPC: H04N9/73 ; H04N9/64 ; H04N5/202 ; H04N5/235 ; G03B7/00

Abstract:
In an image capturing apparatus, a hue shift is prevented. A digital camera has a gray level correction function. Image data obtained with a CCD 10 is divided into a plurality of blocks and further has brightness data and color difference data converted in a brightness/color difference conversion section 20. When it is determined, based on the color difference data, that image data includes blue sky image or that chroma of the image data is high, an image processing exposure compensation adjustment/exposure correction amount calculation section 30 sets an underexposure value, which is employed when capturing images with an exposure value being lower than a correct exposure value, to be smaller than a default value to prevent a hue shift caused by gray level correction performed by a gray level correction section 32.
Public/Granted literature
- US20090167891A1 IMAGE CAPTURING APPARATUS Public/Granted day:2009-07-02
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