[Insight-users] ImageFileReader bug

[Sara Rolfe]

Thanks, I can give this a try.  I'd also like to provide my images so  
others can try and see if they have the same issue.  Links to the  
files and a condensed version of my original code are below.  The  
first file is a 3D, 3 component vector image, which is causing my code  
to stall.  The second is a 3D, 4 component vector image.  I've been  
able to read this (and several different length vector images) without  
any trouble.  To read this one using the code I sent, I just change  
the variable "numberOfComponents" from 3 to 4.

Thanks,
Sara

http://dl.dropbox.com/u/16899529/ITKdata/PropertyMaskMultiDim_3.vtk

http://dl.dropbox.com/u/16899529/ITKdata/PropertyMaskMultiDim_4.vtk


#include "itkImageFileReader.h"
#include "itkImage.h"

int main(int argc,  char * argv[])
{
   const int numberOfComponents = 3; // Change this to 4 to try with  
the other file
   typedef itk::Vector< double, numberOfComponents >   PixelType;
   typedef itk::Image< PixelType, 3 >          ImageType;
   typedef itk::ImageFileReader< ImageType >       ReaderType;

   const char * inputImageFileName = argv[1];

   ReaderType::Pointer reader = ReaderType::New();
   reader->SetFileName( inputImageFileName );
   reader->Update();

   return EXIT_SUCCESS;
}


On Dec 15, 2010, at 10:13 PM, Matt McCormick wrote:

> Sara Rolfe <smrolfe <at> u.washington.edu> writes:
>
>>
>> That sounds just like what I'm experiencing, though I only have this
>> problem for 3 component vector images.  However, I just installed the
>> latest git version of ITK early last week, and it looks like this
>> issue was closed in October.
>>
>
> Sorry for the false trail, then.
>
> The best way to find the problem may be to compile your program with  
> debugging
> symbols (CMAKE_BUILD_TYPE=Debug), and run in the debugger, breaking at
> Code/IO/VTKImageIO.cxx in the method
> void VTKImageIO::InternalReadImageInformation(std::ifstream & file)
>
> Stepping through the code may be informative.  Pay particular  
> attention to
> 240   for ( bool readScalars = false; !readScalars; ).
> It might not be getting out of that loop.
>
> Matt
>
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