[ITK-users] MutualInformationImageToImageMetric without transformation

[Tobias Gass]

Have you checked whether your images are physically overlapping?

You could also try to change the number of MI samples to avoid accidentally
sampling only from homogeneous regions.

Best of luck,
Tobias


2014-08-26 15:31 GMT+02:00 jan <jan.bergmeier at imes.uni-hannover.de>:

> Hi,
>
> my attempt with the identity transform would be this:
>
>     typedef itk::IdentityTransform< double, 2 > TransformType;
>     typedef itk::MutualInformationImageToImageMetric< UChar2DImageType,
> UChar2DImageType > MetricType;
>
>     TransformType::Pointer transform = TransformType::New();
>     MetricType::Pointer metric = MetricType::New();
>
>     metric->SetFixedImage( fixedImage );
>     metric->SetMovingImage( movingImage );
>     metric->GetValue( transform->GetParameters() );
>
> For me it's the same problem. The program crashes when I use GetValue(). It
> seems to me as if the parameters need to be OptimizerParameters....
>
> Thanks,
> Jan
>
>
>
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