[Insight-users] 3D Registration using my own data (.raw and .mha files)

[Luis Ibanez]

Hi Lars,


What is the size (in pixels) of the images:

           1)  N492_MRT1.mha  ?

           2)  N492_MRA.mha   ?



Also, note that you are passing insufficient arguments to this
program, and that two of the arguments that you are passing are
PNG image filenames, where a format capable of storing 3D image
is expected.


        PNG can only store 2D images.


The arguments that this program expects are:


     1) Fixed image (in a 3D file format)
     2) Moving image (in a 3D file format)
     3) Filename for the output resampled
        registered moving image (in a 3D file format)
     3) Filename for the difference between
        fixed image and moving image Before
        registration (in a 3D file format)
     4) Filename for the difference between
        fixed image and moving image After
        registration (in a 3D file format)
     5) Filename for 1 slice of the difference
        between fixed image and moving image
        Before registration (in a 2D file format)
     6) Filename for 1 slice of the difference
        between fixed image and moving image
        After registration (in a 2D file format)


According to your email, you are missing the argument (3),
and you are passing wrong file formats for (what should have
been) arguments (4) and (5).

A correct command line should look like:


     ImageRegistration8
       fixedImage.mhd
       movingImage.mhd
       registeredMovingImage.mhd
       differenceBefore.mhd
       differenceAfter.mhd
       sliceDifferenceBefore.png
       sliceDifferenceAfter.png



Please read the description of this example in the
ITK Software Guide:


       http://www.itk.org/ItkSoftwareGuide.pdf

in the "Image Registration" chapter.


You will also find a list of the fileformats supported
in ITK in the Chapter "Reading and Writing Images" in
the ITK Software Guide.



Regards,


    Luis



--------------------
Lars Nygard wrote:
> Hallo,
> 
> Im trying to use example eight in the registration part (ImageRegistration8.cxx) to
> register a 3D MR Angiography (moving) to an 3D MR T1 image (fixed).
> When I run it i get an error message (see bottom). Is there anybody who can give me
> a hint on what's happening. 
> I haven't been able to run ImageRegistration8.cxx example with the normal data because
> I can't connect to the ftp site ( ftp://public.kitware.com/pub/itk/Data/BrainWeb).
> Does anybody know where I can download the files brainweb165a10f17.mha and
> brainweb165a10f17Rot10Tx15.mha??
> Ok thanks.
> greets
> Lars Nygard
> 
> error message
> ------------------------------------------------------------------------------------------------------------------
> C:\Documents and Settings\nygard\Desktop\Insight Toolkit\Examples\Registration\I
> mageRegistration8\debug>ImageRegistration8 N492_MRT1.mha N492_MRA.mha diffbefore
> .png deffafter.png slicebefore.png sliceafter.png
> 
> ExceptionObject caught !
> itk::ExceptionObject (0130F7A0)
> Location: "class itk::CovariantVector<double,3> *__thiscall itk::ImportImageCont
> ainer<unsigned long,class itk::CovariantVector<double,3> >::AllocateElements(uns
> igned long) const"
> File: c:\documents and settings\nygard\desktop\insight toolkit\source\insighttoo
> lkit-3.2.0\code\common\itkImportImageContainer.txx
> Line: 188
> Description: Failed to allocate memory for image.
> 
> 
>       
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