发明授权
- 专利标题: System and method for enhancing an image
- 专利标题(中): 用于增强图像的系统和方法
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申请号: US11082546申请日: 2005-03-17
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公开(公告)号: US07486835B2公开(公告)日: 2009-02-03
- 发明人: Yan Zhang , Ronald M. Taylor , Robert A. Perisho, Jr.
- 申请人: Yan Zhang , Ronald M. Taylor , Robert A. Perisho, Jr.
- 申请人地址: US MI Troy
- 专利权人: Delphi Technologies, Inc.
- 当前专利权人: Delphi Technologies, Inc.
- 当前专利权人地址: US MI Troy
- 代理商 Jimmy L. Funke
- 主分类号: G06K9/00
- IPC分类号: G06K9/00 ; G06K9/34
摘要:
A system and method for enhancing the contrast within an image. An enhanced image can be generated in a real-time or substantially real-time manner from an initial image. The pixel values of the initial image can be used to populate a histogram or otherwise serve as the basis for subsequent processing. A valley can be identified within the range of pixel values for use as a stretch metric used by a stretch heuristic to expand the contrast of the pixel values in the initial image by expanding the range of pixel values associated with the pixels in the histogram. In some embodiments, the initial image is first divided into image regions that are each associated with individualized processing. A bilinear interpolation step can then be performed to smooth the integrated image after the individualized processing is used to stretch the pixels within the individual image regions.
公开/授权文献
- US20060210190A1 System and method for enhancing an image 公开/授权日:2006-09-21