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Re: Gaussian Enhancement on Image Histogram [message #45563] Wed, 21 September 2005 07:35 Go to previous message
James Kuyper is currently offline  James Kuyper
Messages: 425
Registered: March 2000
Senior Member
raval.chintan@gmail.com wrote:
> David,
>
> Thank you for reply, Here the problem is with Gaussint function , the
> eqation that is given in the documentation that says that this Gaussian
> function is calculated for the Mean = 0 and Sandard Deviation = 1 (
> Because the Variance = 1 ), now i want to plot the curve for different
> standard deviation. How is it possible? ( if you check with envi
> ,Gaussian enhancement, Interactive Streching , It will allow you to
> change the Standard deviation , in option menu , and according to that
> the curve will change,.)

For a gaussian curve with mean value of m and a standard deviation of
s, the integral from 0 to x is s*GAUSSINT((x-m)/s).

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