发明名称 Method and system in digital imaging for adjusting exposure and a corresponding device
摘要 The invention relates to a method in digital imaging for adjusting exposure, in which one or more exposure parameters (ET, AG) of a camera device are adjusted in connection with imaging. In the method, a histogram formed from a raw image frame (12) is analysed, from which one or more special values (Rhigh, Rlow) are specified and which compared with a target level (Htgt, Ltgt) set for them, and, if a special value (Rhigh, Rlow) differs from the target level (Htgt, Ltgt), the exposure parameters (ET, AG) are adjusted to achieve the target level (Htgt, Ltgt).
申请公布号 US7474847(B2) 申请公布日期 2009.01.06
申请号 US20050558912 申请日期 2005.11.30
申请人 NOKIA CORPORATION 发明人 NIKKANEN JARNO;KALEVO OSSI
分类号 G03B7/00;G03B;G03B7/093;H04N5/235 主分类号 G03B7/00
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