[Insight-users] Pixel difference between two images

[robert tamburo]

I lost track of your exact problem, but it looks like you need to 1) update
the reader, i.e.,

reader->SetFileName("Image.png");
reader->Update();

and 2) initialize the metric, i.e.,

metric->Initialize();
cout<<endl<< metric->GetValue( params ) << endl ;

On Tue, Oct 4, 2011 at 8:24 PM, soheilghafurian
<soheilghafurian at yahoo.com>wrote:

> Hi Cory
>
> Thanks a lot for your time and consideration. In order to test it, I wrote
> a
> one page code, and it has the same problem. Here is my code. I think there
> is a part that should be added, but I don't know what it is.
>
> #include "itkImage.h"
> #include "itkImageFileReader.h"
> #include <itkMeanSquaresImageToImageMetric.h>
> #include <itkIdentityTransform.h>
>
> #include "QuickView.h"
>
> using namespace std ;
>
> int main()
> {
>  typedef itk::Image< double, 2 >         ImageType;
>  typedef itk::ImageFileReader<ImageType> ReaderType;
>
>  ReaderType::Pointer reader = ReaderType::New();
>  reader->SetFileName("Image.png");
>
>  QuickView viewer;
>  viewer.AddImage<ImageType>(reader->GetOutput());
>
>
>  ImageType::Pointer FixedImage = reader->GetOutput() ;
>  ImageType::Pointer MovingImage = reader->GetOutput() ;
>
>  typedef itk::MeanSquaresImageToImageMetric < ImageType , ImageType >
> MetricType ;
>  typedef itk::IdentityTransform < double , 2 > TransformType ;
>
>  MetricType::Pointer metric = MetricType::New() ;
>  TransformType::Pointer transform = TransformType::New() ;
>
>  metric->SetFixedImage( FixedImage ) ;
>  metric->SetMovingImage( MovingImage ) ;
>  metric->SetTransform( transform ) ;
>
>  TransformType::ParametersType params ;
>
>  cout<<endl<< metric->GetValue( params ) << endl ;
>
>  viewer.Visualize();
>
>  return EXIT_SUCCESS;
> }
>
> --
> View this message in context:
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