Image pickup apparatus, gain control method, and gain control program, which sequentially set gain values in a gain adjusting circuit to select a gain value to be set in another gain adjusting circuit to maintain white balance

A first gain value table stores gain values set in R and B amplifiers of a first gain adjusting circuit, and a second gain value table stores gain values set in R and B amplifiers of a second gain adjusting circuit. The gain values from the second gain value table are sequentially set in the second...

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Bibliographic Details
Main Authors Yuyama, Masami, Murata, Noriyasu
Format Patent
LanguageEnglish
Published 14.10.2008
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Summary:A first gain value table stores gain values set in R and B amplifiers of a first gain adjusting circuit, and a second gain value table stores gain values set in R and B amplifiers of a second gain adjusting circuit. The gain values from the second gain value table are sequentially set in the second gain adjusting circuit to detect white portions. Based on the detection of the white portions, a gain value to be set in the first gain adjusting circuit is selected from the first gain value table, to obtain an image that maintains white balance.