[vtkusers] Re: Preprocessing intensity images

[Arne Hansen]

Has nobody had experience with these kind of problems before?

-Regards

2007/5/8, Arne Hansen <bsd.diverse at gmail.com>:
>
> Hello.
> I have a set of 20 MRI images. I am developing a segmentation method which
> is based on intensity distributions off subsamples of all the images. The
> problem is that the intensity distribution varies across the images, so I
> need to somehow process it so that it becomes standard. I have thought about
> just substracting the mean and divide with the standard deviation for each
> image to get standardized data, but I cannot see if this will affect the
> probability distribution.
>
> So my question is, how are images normally preprocessed in order to have
> corresponding intensities across all images, so that an intensity based
> algorithm can work on all the images?
>
> I hope you know what I mean, otherwise I will gladly try to explain it
> again.
>
> Looking forward to hear from you.
>
> Best of regards
>
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