[Insight-users] changing the metric automatically

[Karthik Krishnan]

First, you might want to look into other metrics that are not contrast 
sensitive, such as Mutual Information or Normalized Correlation etc...

And if you are bent on using the MeanSquares metric for other reasons 
(that assumes that homologous points have the same intensity shift), you 
might want preprocess your fixed and moving images with a 
HistogramMatchingFilter . 

http://www.itk.org/Insight/Doxygen/html/classitk_1_1HistogramMatchingImageFilter.html

You might find some examples in Examples/Registration.

karthik

Suresh G N wrote:

> Hi All,
>
> Presently I am registering my data set using MeanSquare metric. I have 
> observed that, when the contrast of moving image changes, registration 
> is not working properly. I am planning to use some method to track the 
> contrast change and change the metric to MI automatically. Can 
> somebody suggest how to do this using itk?
>
> thanks and regards
> Suresh
>
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