Invention Grant
US08049791B2 Method, apparatus and system using hierarchical histogram for automatic exposure adjustment of an image
有权
使用分层直方图对图像进行自动曝光调整的方法，装置和系统
- Patent Title: Method, apparatus and system using hierarchical histogram for automatic exposure adjustment of an image
- Patent Title (中): 使用分层直方图对图像进行自动曝光调整的方法，装置和系统
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Application No.: US12855895Application Date: 2010-08-13
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Publication No.: US08049791B2Publication Date: 2011-11-01
- Inventor: Shane C. Hu
- Applicant: Shane C. Hu
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Dickstein Shapiro LLP
- Main IPC: H04N5/235
- IPC: H04N5/235
Abstract:
An automatic exposure control circuit and a method for generating a hierarchical histogram for exposure control. The control circuit and the method result in the generation of a histogram with sub-histograms of differing resolutions. The sub-histograms are used to adjust an image exposure setting according to a distribution of pixel values determined from the histogram.
Public/Granted literature
- US20110001845A1 METHOD, APPARATUS AND SYSTEM USING HIERARCHICAL HISTOGRAM FOR AUTOMATIC EXPOSURE ADJUSTMENT OF AN IMAGE Public/Granted day:2011-01-06
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