发明名称 Systems, methods, and devices for flash exposure control using preflash statistics
摘要 Systems, methods, and devices for obtaining a properly exposed strobe-illuminated image are provided. One method for doing so may include, for example, gathering image capture statistics during a first period when a strobe is not emitting light and during a second period when the strobe emits a preflash. These image capture statistics may include distinct image capture control statistics and luma values associated with the periods. Final image capture control statistics then may be determined based at least in part on the first luma value normalized to the first image capture control statistics and the second luma value normalized to the second image capture control statistics. Thereafter, the final image capture control statistics may be used to capture a properly exposed strobe-illuminated image when the strobe emits a main flash.
申请公布号 US8730384(B2) 申请公布日期 2014.05.20
申请号 US20100792916 申请日期 2010.06.03
申请人 GUO HAITAO;KUO DAVID DAMING;APPLE INC. 发明人 GUO HAITAO;KUO DAVID DAMING
分类号 H04N9/68 主分类号 H04N9/68
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