Title:
ディジタルカメラ画像の輝度を調整する方法
Document Type and Number:
Japanese Patent JP5367123
Kind Code:
B2
Abstract:
A method for adjusting the brightness of a captured image from a digital camera includes calculating a reference exposure value using the capture parameters and calculating an actual exposure value as a function of ambient illumination parameters. The reference exposure and actual exposure values are compared to determine an actual image saturation value. The actual image saturation value is compared with the saturation value of the image sensor to determine a brightness adjustment factor, and the captured image is adjusted to compensate for overexposure or underexposure in response to the brightness adjustment factor. The image is scaled up or down using the brightness adjustment factor if the actual image saturation value is less than or more than the saturation value of the image sensor used to capture the image.
Inventors:
Lastislav Lukatchi
Application Number:
JP2012114304A
Publication Date:
December 11, 2013
Filing Date:
May 18, 2012
Export Citation:
Assignee:
Foveon Incorporated
International Classes:
H04N5/238; G03B7/091
Domestic Patent References:
| JP6113195A | ||||
| JP2008048029A |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Previous Patent: JPS5367122
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