System or method for enhancing an image

专利名称：System or method for enhancing an image发明人：Zhang, Yan,Taylor, Ronald M.,Perisho,

Robert A. Jr.

申请号：EP06075529.5申请日：20060307公开号：EP1703462A1公开日：20060920

专利附图：

摘要：A system (20) and method for enhancing the contrast within an image (22). Anenhanced image (24) can be generated in a real-time or substantially real-time mannerfrom an initial image (22). The pixel values (38) of the initial image (22) can be used to

populate a histogram (40) or otherwise serve as the basis for subsequent processing. Avalley (44) can be identified within the range of pixel values (38) for use as a stretchmetric (48) used by a stretch heuristic (46) to expand the contrast of the pixel values (38)in the initial image (22) by expanding the range of pixel values (38) associated with thepixels (36) in the histogram (40). In some embodiments, the initial image (22) is firstdivided into image regions (52) that are each associated with individualized processing. Abilinear interpolation step (56) can then be performed to smooth the integrated imageafter the individualized processing is used to stretch the pixels (36) within the individualimage regions (52).

申请人：Delphi Technologies, Inc.

地址：PO Box 5052 Troy, MI 48007 US

国籍：US

代理机构：Denton, Michael John

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