[Insight-users] Re: Preprocessing intensity images

[Xabier Artaechevarria Artieda]

Hi Arne,

I do not know if it would solve your problem, but have you considered  
just rescaling the images with the RescaleIntensityImageFilter?

Regards,
Xabi



Arne Hansen <bsd.diverse at gmail.com> ha escrito:

> 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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