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Local Normalization

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Local Normalization

by Guanglei Xiong

 

17 Aug 2005 (Updated 07 Sep 2005)

Reduce the difference of the illumination.

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Description

LOCALNORMALIZE A local normalization algorithm that uniformizes the local mean and variance of an image.

ln=localnormalize(IM,sigma1,sigma2) outputs local normalization effect of image IM using local mean and standard deviation estimated by Gaussian kernel with sigma1 and sigma2 respectively.

Contributed by Guanglei Xiong (xgl99@mails.tsinghua.edu.cn) at Tsinghua University, Beijing, China.

Inspired by the link:

http://bigwww.epfl.ch/demo/jlocalnormalization/

Required Products Statistics Toolbox
MATLAB release MATLAB 7.0.4 (R14SP2)
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Comments and Ratings (4)
19 Nov 2006 Wenjia Bai

Good job!

14 May 2007 mustafa sakar  
14 May 2007 mustafa sakar  
29 Jun 2007 A M

nice and simple!

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Updates
07 Sep 2005

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Tag Activity for this File
Tag Applied By Date/Time
enhancement Guanglei Xiong 22 Oct 2008 07:55:59
local normalization gaussian Guanglei Xiong 22 Oct 2008 07:55:59
image processing Guanglei Xiong 22 Oct 2008 07:55:59
uniformi Guanglei Xiong 22 Oct 2008 07:55:59
image processing it ieci 01 Mar 2009 16:38:51
local normalization gaussian cherry zhang 08 Oct 2011 11:04:55
image processing cherry zhang 08 Oct 2011 11:05:00

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