Invention Grant
US08665348B2 Image processing apparatus and method using forward and inverse local adaptation processing and dynamic range processing 有权
使用前向和反向局部自适应处理和动态范围处理的图像处理装置和方法

  • Patent Title: Image processing apparatus and method using forward and inverse local adaptation processing and dynamic range processing
  • Patent Title (中): 使用前向和反向局部自适应处理和动态范围处理的图像处理装置和方法
  • Application No.: US12548174
    Application Date: 2009-08-26
  • Publication No.: US08665348B2
    Publication Date: 2014-03-04
  • Inventor: Yasuo Fukuda
  • Applicant: Yasuo Fukuda
  • Applicant Address: JP Tokyo
  • Assignee: Canon Kabushiki Kaisha
  • Current Assignee: Canon Kabushiki Kaisha
  • Current Assignee Address: JP Tokyo
  • Agency: Cowan, Liebowitz & Latman, P.C.
  • Priority: JP2008-223919 20080901
  • Main IPC: H04N9/68
  • IPC: H04N9/68
Image processing apparatus and method using forward and inverse local adaptation processing and dynamic range processing
Abstract:
A captured image and capture conditions of an input device when the captured image was captured are input, and viewing conditions when a reproduced image, which is reproduced by an output device, is viewed are input. A first perceived image is generated from the captured image by a forward conversion of local adaptation processing that conforms to information, which indicates viewing angle, distance to a subject and image resolution of the captured image, included in the capture conditions. A second perceived image is generated by converting a dynamic range of the first perceived image to a dynamic range of the output device. A reproduced image, which is supplied to the output device, is generated from the second perceived image by an inverse conversion of the local adaptation processing that conforms to information, which relates to viewing distance and size of the reproduced image, included in the viewing conditions.
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