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Re: Streched exponentail function

  1. Sep 20, 2007 #1
    Iam using Streched exponentail decay function to correct the intensity decay of a stack of images in which the first iamge in the stack have maximum intensity and decay exp so taht the last iamge in the stack have alomost nothing to see . I derived an expression to find the alpha value in the exponantial function(e^(-alpahx)^beta) which is the correction parameter.The alpha value value depends on the beta value which ranges from 0-1. Now my problem is to find the optimum alpha and beta values from the set of (alpha,beta ) so that the intensity correction is optimum.
    whether laest sqaure can be used for this. which isthe best way to find
  2. jcsd
  3. Sep 21, 2007 #2


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    What is x? If y = e^(-a x)^b, how would you interpret y?
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