Invention Application
US20120170843A1 METHODS FOR PERFORMING LOCAL TONE MAPPING 有权
用于执行局部色调映射的方法

  • Patent Title: METHODS FOR PERFORMING LOCAL TONE MAPPING
  • Patent Title (中): 用于执行局部色调映射的方法
  • Application No.: US12985310
    Application Date: 2011-01-05
  • Publication No.: US20120170843A1
    Publication Date: 2012-07-05
  • Inventor: Peng Lin
  • Applicant: Peng Lin
  • Main IPC: G06K9/40
  • IPC: G06K9/40 G06K9/00
METHODS FOR PERFORMING LOCAL TONE MAPPING
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.
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