Invention Grant
- Patent Title: Methods for performing local tone mapping
- Patent Title (中): 执行本地色调映射的方法
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Application No.: US12985310Application Date: 2011-01-05
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Publication No.: US08391598B2Publication Date: 2013-03-05
- Inventor: Peng Lin
- Applicant: Peng Lin
- Applicant Address: KY George Town
- Assignee: Aptina Imaging Corporation
- Current Assignee: Aptina Imaging Corporation
- Current Assignee Address: KY George Town
- Agency: Treyz Law Group
- Agent G. Victor Treyz; Nancy Y. Ru
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
Adaptive local tone mapping may be used to convert a high dynamic range image to a low dynamic range image. Tone mapping may be performed on an on a Bayer domain image. A high dynamic range image may be filtered to produce a luminance signal. An illumination component of the luminance signal may be compressed. A reflectance component of the luminance signal may be sharpened. After the luminance signal has been processed, it may be used in producing an output image in the Bayer domain that has a lower dynamic range than the input image. The output Bayer domain image may be demosaiced to produce an RGB image. Tone-mapping may be performed with a tone-mapping processor.
Public/Granted literature
- US20120170843A1 METHODS FOR PERFORMING LOCAL TONE MAPPING Public/Granted day:2012-07-05
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