发明授权
- 专利标题: System and method for adaptive local white balance adjustment
- 专利标题(中): 用于自适应局部白平衡调整的系统和方法
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申请号: US12099351申请日: 2008-04-08
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公开(公告)号: US08013907B2公开(公告)日: 2011-09-06
- 发明人: Jiangtao Kuang , Weihua Xiong
- 申请人: Jiangtao Kuang , Weihua Xiong
- 申请人地址: US CA Santa Clara
- 专利权人: OmniVision Technologies, Inc.
- 当前专利权人: OmniVision Technologies, Inc.
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Blakely Sokoloff Taylor & Zafman LLP
- 主分类号: H04N9/73
- IPC分类号: H04N9/73
摘要:
The disclosure describes embodiments of an apparatus comprising an image sensor including a pixel array having a plurality of pixels and an automatic white balance (AWB) circuit coupled to the pixel array. The AWB circuit is used to determine a local white balance component for each pixel, determine a global white balance component for each pixel, and apply a white balance adjustment to each pixel, the applied white balance adjustment comprising a combination of the local white balance component and the global white balance component. The disclosure also describes embodiment of a process including receiving image data from each pixel in a pixel array, determining a local white balance component for the image data from each pixel, determining a global white balance component for the image data from each pixel, and applying a white balance adjustment to the image data from each pixel, the applied white balance adjustment comprising a combination of the local white balance component and the global white balance component. Other embodiments are also disclosed and claimed.
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